Discover Ultra Goes to War: The Secret Story of the Role of Cryptography in World War II by Ronald Lewin.
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Details & Genres
HistoryMilitary HistoryEspionageNon FictionWorld War IiWwiiWw2
After spending years working in the corporate world, Ronald Lewin finally decided to pursue a lifelong passion for writing. They currently reside in a quiet suburb where they spend most of their time outlining new stories, reading extensively, and occasionally attempting to bake.
Pretty good overall. The middle dragged a tiny bit, but the ending totally made up for it. I'd probably recommend it to a friend.
Michael SmithFebruary 28, 2025
Took me a few chapters to get into it, but it was worth it. Writing is good, just wish there was a bit more depth in certain parts. Still kept my attention though. Still a good book.
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Edward HillDecember 09, 2025
Glad someone recommended this to me. The pacing was spot on and the characters felt real. I didn't find myself getting bored at any point. Worth the time and money.
Susan RodriguezJune 19, 2025
An average read for me. The writing was fine, but I didn't feel very connected to the characters. They felt a bit flat. A generous 3 stars.
Amanda CampbellJune 28, 2024
Glad someone recommended this to me. I loved how the story unfolded. It kept me guessing without being too confusing. Glad I picked this up.
Stephanie DavisFebruary 03, 2024
An average read for me. The pacing was a bit slow and I found myself skimming a few pages. It wasn't terrible, just okay. It's fine if you have nothing else to read.
William WilsonJanuary 31, 2024
A very satisfying read. The author did a great job wrapping everything up at the end. No weird plot holes left behind. Would probably read it again at some point.
William ScottJuly 10, 2025
Really enjoyed this one. It has a good balance of dialogue and description. Everything felt like it moved at the right speed. Worth the time and money.
Barbara WilsonMay 29, 2024
Took me a few chapters to get into it, but it was worth it. Writing is good, just wish there was a bit more depth in certain parts. Still kept my attention though. Not bad at all.
Cynthia ThompsonNovember 23, 2025
Really enjoyed this one. The writing style is very engaging. It’s easy to follow but still has a lot of depth. Glad I picked this up.
Joseph NguyenJune 09, 2025
Honestly one of the better books I've read lately. I loved how the story unfolded. It kept me guessing without being too confusing. Glad I picked this up.
Nancy ParkerAugust 05, 2025
Glad someone recommended this to me. The writing style is very engaging. It’s easy to follow but still has a lot of depth. Worth the time and money.
George GomezJune 29, 2024
Not bad, but not my favorite. The writing was fine, but I didn't feel very connected to the characters. They felt a bit flat. Just right down the middle.
Stephanie SmithJanuary 11, 2025
Finished it in a couple of days. The pacing was spot on and the characters felt real. I didn't find myself getting bored at any point. Glad I picked this up.
Margaret MartinOctober 20, 2025
Such a great read. The author did a great job wrapping everything up at the end. No weird plot holes left behind. Glad I picked this up.
Stephanie ScottOctober 26, 2024
I have mixed feelings about this one. It felt a bit repetitive in the middle. Could have been shorter. Probably won't read it again, but it was an okay way to pass the time.
Dorothy JacksonNovember 20, 2025
Finished it in a couple of days. The pacing was spot on and the characters felt real. I didn't find myself getting bored at any point. Will be looking for more from this author.
Sharon ParkerAugust 04, 2024
Such a great read. The writing style is very engaging. It’s easy to follow but still has a lot of depth. Glad I picked this up.
Donna MitchellJune 28, 2025
Good, but not quite perfect. The middle dragged a tiny bit, but the ending totally made up for it. Not bad at all.
Barbara LeeSeptember 29, 2024
A solid read. Interesting premise and executed fairly well. Just a few slow chapters here and there. I'd probably recommend it to a friend.
Amanda RobertsJanuary 12, 2025
Honestly one of the better books I've read lately. The writing style is very engaging. It’s easy to follow but still has a lot of depth. Definitely recommend it if you like this genre.
Donald CollinsAugust 05, 2024
Glad someone recommended this to me. The author did a great job wrapping everything up at the end. No weird plot holes left behind. Worth the time and money.
Daniel NguyenJuly 18, 2025
A solid read. The middle dragged a tiny bit, but the ending totally made up for it. Not bad at all.
Emily ThompsonOctober 05, 2025
Finished it in a couple of days. It has a good balance of dialogue and description. Everything felt like it moved at the right speed. Glad I picked this up.
Mary GomezJune 04, 2025
Good, but not quite perfect. Interesting premise and executed fairly well. Just a few slow chapters here and there. Still a good book.
Christopher ThomasJune 22, 2025
I liked it for the most part. It held my attention, even if a few things were a little predictable. A solid 4 stars from me.
Donna GonzalezAugust 21, 2025
A very satisfying read. The pacing was spot on and the characters felt real. I didn't find myself getting bored at any point. Glad I picked this up.
Karen CampbellSeptember 09, 2024
Pretty good overall. The middle dragged a tiny bit, but the ending totally made up for it. Enjoyable weekend read.
Margaret HernandezNovember 06, 2024
Took me a few chapters to get into it, but it was worth it. I liked the main character, though some of the side plots were just okay. Still a good book.
Edward KingNovember 11, 2024
A solid read. I liked the main character, though some of the side plots were just okay. I'd probably recommend it to a friend.
Dorothy CollinsApril 09, 2025
I was pleasantly surprised. It has a good balance of dialogue and description. Everything felt like it moved at the right speed. A solid 5/5 for me.
Gary LeeSeptember 18, 2024
Took me a few chapters to get into it, but it was worth it. I liked the main character, though some of the side plots were just okay. Still a good book.
Robert LopezMay 20, 2025
Took me a few chapters to get into it, but it was worth it. The middle dragged a tiny bit, but the ending totally made up for it. I'd probably recommend it to a friend.
Andrew KingNovember 03, 2024
Pretty good overall. I liked the main character, though some of the side plots were just okay. I'd probably recommend it to a friend.
Sharon RobertsMarch 07, 2024
Finished it in a couple of days. It has a good balance of dialogue and description. Everything felt like it moved at the right speed. Would probably read it again at some point.
Sharon DiazOctober 01, 2025
Glad someone recommended this to me. I got really invested in the main character's journey. Everything just clicked for me. Definitely recommend it if you like this genre.
Robert ClarkOctober 27, 2024
Finished it in a couple of days. It has a good balance of dialogue and description. Everything felt like it moved at the right speed. Will be looking for more from this author.
Sarah CarterNovember 07, 2025
A very satisfying read. It has a good balance of dialogue and description. Everything felt like it moved at the right speed. Definitely recommend it if you like this genre.
Stephanie SmithJuly 26, 2024
I was pleasantly surprised. It has a good balance of dialogue and description. Everything felt like it moved at the right speed. A solid 5/5 for me.
Donna HillOctober 13, 2025
An average read for me. It had some good moments, but the overall plot felt a bit disjointed in the second half. Just right down the middle.
Mary EdwardsDecember 29, 2025
Took me a few chapters to get into it, but it was worth it. Interesting premise and executed fairly well. Just a few slow chapters here and there. I'd probably recommend it to a friend.
Andrew KingDecember 23, 2025
A very satisfying read. I loved how the story unfolded. It kept me guessing without being too confusing. A solid 5/5 for me.
Matthew JacksonSeptember 03, 2025
Really enjoyed this one. The pacing was spot on and the characters felt real. I didn't find myself getting bored at any point. Would probably read it again at some point.
Donald MitchellJune 21, 2024
Took me a few chapters to get into it, but it was worth it. The middle dragged a tiny bit, but the ending totally made up for it. I'd probably recommend it to a friend.
Andrew FloresJune 21, 2025
Glad someone recommended this to me. The pacing was spot on and the characters felt real. I didn't find myself getting bored at any point. Will be looking for more from this author.
James CruzApril 08, 2024
A very satisfying read. The pacing was spot on and the characters felt real. I didn't find myself getting bored at any point. Worth the time and money.
Michael SanchezMarch 07, 2024
I was pleasantly surprised. The writing style is very engaging. It’s easy to follow but still has a lot of depth. Would probably read it again at some point.
Robert LopezNovember 05, 2024
Honestly one of the better books I've read lately. I got really invested in the main character's journey. Everything just clicked for me. Worth the time and money.
Gary ReyesJuly 15, 2024
Honestly one of the better books I've read lately. I loved how the story unfolded. It kept me guessing without being too confusing. Worth the time and money.
Thomas GomezAugust 30, 2025
Honestly one of the better books I've read lately. I got really invested in the main character's journey. Everything just clicked for me. Worth the time and money.
Andrew RobertsJuly 03, 2024
Not bad, but not my favorite. The pacing was a bit slow and I found myself skimming a few pages. It wasn't terrible, just okay. A generous 3 stars.
Carol TorresNovember 06, 2025
A solid read. I liked the main character, though some of the side plots were just okay. Not bad at all.
Joshua GonzalezMarch 11, 2024
It was okay. It had some good moments, but the overall plot felt a bit disjointed in the second half. It's fine if you have nothing else to read.
Ryan CollinsJanuary 20, 2024
I liked it for the most part. Writing is good, just wish there was a bit more depth in certain parts. Still kept my attention though. A solid 4 stars from me.
Mary AdamsMarch 17, 2024
Really enjoyed this one. I loved how the story unfolded. It kept me guessing without being too confusing. Definitely recommend it if you like this genre.
Richard JonesDecember 03, 2024
A solid read. The middle dragged a tiny bit, but the ending totally made up for it. Still a good book.
Amanda RodriguezFebruary 24, 2025
I liked it for the most part. It held my attention, even if a few things were a little predictable. Not bad at all.
George HernandezMay 08, 2025
I was pleasantly surprised. The writing style is very engaging. It’s easy to follow but still has a lot of depth. A solid 5/5 for me.
Robert TurnerApril 29, 2024
Glad someone recommended this to me. The writing style is very engaging. It’s easy to follow but still has a lot of depth. Will be looking for more from this author.
Ryan YoungAugust 26, 2024
I liked it for the most part. The middle dragged a tiny bit, but the ending totally made up for it. I'd probably recommend it to a friend.
Jessica GreenAugust 17, 2025
A solid read. Writing is good, just wish there was a bit more depth in certain parts. Still kept my attention though. Still a good book.
David WhiteJune 11, 2024
I liked it for the most part. I liked the main character, though some of the side plots were just okay. A solid 4 stars from me.
Sarah AndersonMay 26, 2025
Finished it in a couple of days. The author did a great job wrapping everything up at the end. No weird plot holes left behind. Definitely recommend it if you like this genre.
Ryan CollinsMay 16, 2025
Pretty good overall. Writing is good, just wish there was a bit more depth in certain parts. Still kept my attention though. Still a good book.
Nicholas ScottNovember 10, 2024
I liked it for the most part. The middle dragged a tiny bit, but the ending totally made up for it. I'd probably recommend it to a friend.
Mary EdwardsJanuary 24, 2024
Really enjoyed this one. The pacing was spot on and the characters felt real. I didn't find myself getting bored at any point. Would probably read it again at some point.
Betty JacksonMarch 31, 2024
A very satisfying read. The pacing was spot on and the characters felt real. I didn't find myself getting bored at any point. Worth the time and money.
Cynthia FloresDecember 08, 2025
I was pleasantly surprised. I got really invested in the main character's journey. Everything just clicked for me. Will be looking for more from this author.
Daniel GreenAugust 12, 2025
A very satisfying read. I loved how the story unfolded. It kept me guessing without being too confusing. Definitely recommend it if you like this genre.
Stephanie ReyesMay 01, 2025
I was pleasantly surprised. I loved how the story unfolded. It kept me guessing without being too confusing. Glad I picked this up.
Donald CollinsApril 28, 2024
A very satisfying read. The pacing was spot on and the characters felt real. I didn't find myself getting bored at any point. Worth the time and money.
Matthew PhillipsJune 15, 2025
A very satisfying read. The writing style is very engaging. It’s easy to follow but still has a lot of depth. Will be looking for more from this author.
Lisa HallOctober 08, 2024
A very satisfying read. The pacing was spot on and the characters felt real. I didn't find myself getting bored at any point. Worth the time and money.
Lisa LeeDecember 04, 2025
Pretty good overall. It held my attention, even if a few things were a little predictable. Not bad at all.
Steven DiazSeptember 24, 2024
Really enjoyed this one. It has a good balance of dialogue and description. Everything felt like it moved at the right speed. Would probably read it again at some point.
William WilsonAugust 26, 2024
A solid read. Interesting premise and executed fairly well. Just a few slow chapters here and there. Not bad at all.
Edward HillApril 05, 2025
Really enjoyed this one. The pacing was spot on and the characters felt real. I didn't find myself getting bored at any point. Worth the time and money.
Laura GarciaAugust 19, 2024
A solid read. It held my attention, even if a few things were a little predictable. Enjoyable weekend read.
John DavisNovember 17, 2024
I was pleasantly surprised. It has a good balance of dialogue and description. Everything felt like it moved at the right speed. Would probably read it again at some point.
Daniel HarrisDecember 21, 2025
I was pleasantly surprised. It has a good balance of dialogue and description. Everything felt like it moved at the right speed. Glad I picked this up.
David TurnerNovember 02, 2025
Honestly one of the better books I've read lately. I loved how the story unfolded. It kept me guessing without being too confusing. Definitely recommend it if you like this genre.
Lisa EdwardsJune 26, 2024
An average read for me. The pacing was a bit slow and I found myself skimming a few pages. It wasn't terrible, just okay. It's fine if you have nothing else to read.
Donna YoungAugust 06, 2025
Glad someone recommended this to me. The author did a great job wrapping everything up at the end. No weird plot holes left behind. Glad I picked this up.
Thomas JohnsonNovember 24, 2025
It was just alright. It had some good moments, but the overall plot felt a bit disjointed in the second half. Probably won't read it again, but it was an okay way to pass the time.
Richard ReyesFebruary 13, 2025
Such a great read. It has a good balance of dialogue and description. Everything felt like it moved at the right speed. Definitely recommend it if you like this genre.
Donna MillerJuly 09, 2025
A very satisfying read. The author did a great job wrapping everything up at the end. No weird plot holes left behind. Would probably read it again at some point.
David TorresFebruary 19, 2025
Pretty good overall. Writing is good, just wish there was a bit more depth in certain parts. Still kept my attention though. A solid 4 stars from me.
Sandra JohnsonDecember 19, 2024
I liked it for the most part. The middle dragged a tiny bit, but the ending totally made up for it. Enjoyable weekend read.
Sandra KingFebruary 01, 2024
Finished it in a couple of days. The pacing was spot on and the characters felt real. I didn't find myself getting bored at any point. Glad I picked this up.
Charles LewisJune 02, 2025
Glad someone recommended this to me. It has a good balance of dialogue and description. Everything felt like it moved at the right speed. Definitely recommend it if you like this genre.
Kenneth WilsonAugust 06, 2025
An average read for me. Some parts were interesting, while others were a bit of a slog to get through. Probably won't read it again, but it was an okay way to pass the time.
Melissa CampbellFebruary 01, 2025
Pretty good overall. The middle dragged a tiny bit, but the ending totally made up for it. Enjoyable weekend read.
Anthony AndersonSeptember 23, 2024
Not bad, but not my favorite. The pacing was a bit slow and I found myself skimming a few pages. It wasn't terrible, just okay. It's fine if you have nothing else to read.
Sarah WilliamsJuly 10, 2025
Glad someone recommended this to me. I got really invested in the main character's journey. Everything just clicked for me. A solid 5/5 for me.
Donna MillerDecember 02, 2025
Such a great read. I got really invested in the main character's journey. Everything just clicked for me. Definitely recommend it if you like this genre.
Emily WilliamsApril 13, 2024
Good, but not quite perfect. Writing is good, just wish there was a bit more depth in certain parts. Still kept my attention though. A solid 4 stars from me.
Sandra EvansDecember 08, 2024
Finished it in a couple of days. The author did a great job wrapping everything up at the end. No weird plot holes left behind. A solid 5/5 for me.
Emily HernandezDecember 14, 2025
Honestly one of the better books I've read lately. The writing style is very engaging. It’s easy to follow but still has a lot of depth. Will be looking for more from this author.
George AndersonFebruary 21, 2025
A very satisfying read. I got really invested in the main character's journey. Everything just clicked for me. Worth the time and money.
Richard RobertsMay 12, 2024
Good, but not quite perfect. It held my attention, even if a few things were a little predictable. Enjoyable weekend read.
Steven MooreAugust 21, 2024
Finished it in a couple of days. The pacing was spot on and the characters felt real. I didn't find myself getting bored at any point. Glad I picked this up.
Matthew RodriguezJuly 25, 2025
Really enjoyed this one. The writing style is very engaging. It’s easy to follow but still has a lot of depth. Worth the time and money.
Gary JonesMay 08, 2024
I have mixed feelings about this one. It felt a bit repetitive in the middle. Could have been shorter. Might work better for someone else, just wasn't completely for me.
Sandra EvansAugust 25, 2025
I liked it for the most part. Interesting premise and executed fairly well. Just a few slow chapters here and there. Still a good book.
Christopher SmithMay 06, 2024
Pretty good overall. The middle dragged a tiny bit, but the ending totally made up for it. Not bad at all.
Jessica GreenSeptember 28, 2025
Such a great read. The writing style is very engaging. It’s easy to follow but still has a lot of depth. Worth the time and money.
Paul HillDecember 25, 2024
Really enjoyed this one. It has a good balance of dialogue and description. Everything felt like it moved at the right speed. Worth the time and money.
David AllenDecember 18, 2025
A very satisfying read. The pacing was spot on and the characters felt real. I didn't find myself getting bored at any point. Glad I picked this up.
Amanda CampbellFebruary 10, 2024
Such a great read. I loved how the story unfolded. It kept me guessing without being too confusing. Glad I picked this up.
George LeeMarch 27, 2024
I liked it for the most part. The middle dragged a tiny bit, but the ending totally made up for it. I'd probably recommend it to a friend.
Melissa NguyenJuly 01, 2024
Honestly one of the better books I've read lately. It has a good balance of dialogue and description. Everything felt like it moved at the right speed. Would probably read it again at some point.
Ryan CollinsMay 25, 2025
An average read for me. It felt a bit repetitive in the middle. Could have been shorter. Might work better for someone else, just wasn't completely for me.
Amanda CollinsJanuary 12, 2025
Honestly one of the better books I've read lately. The writing style is very engaging. It’s easy to follow but still has a lot of depth. Definitely recommend it if you like this genre.
Donna MitchellJuly 22, 2025
It was okay. The pacing was a bit slow and I found myself skimming a few pages. It wasn't terrible, just okay. It's fine if you have nothing else to read.
Steven JacksonAugust 18, 2025
Pretty good overall. It held my attention, even if a few things were a little predictable. A solid 4 stars from me.
Sharon GreenApril 22, 2024
Took me a few chapters to get into it, but it was worth it. It held my attention, even if a few things were a little predictable. Still a good book.
Brian JonesAugust 14, 2024
Good, but not quite perfect. It held my attention, even if a few things were a little predictable. Still a good book.
Ryan DiazSeptember 14, 2025
A solid read. Interesting premise and executed fairly well. Just a few slow chapters here and there. A solid 4 stars from me.
Eric TurnerSeptember 26, 2025
An average read for me. Some parts were interesting, while others were a bit of a slog to get through. Just right down the middle.
John SanchezJuly 21, 2024
I was pleasantly surprised. The author did a great job wrapping everything up at the end. No weird plot holes left behind. Will be looking for more from this author.
Nancy HernandezAugust 23, 2025
Took me a few chapters to get into it, but it was worth it. The middle dragged a tiny bit, but the ending totally made up for it. Enjoyable weekend read.
Jennifer JonesAugust 11, 2024
Honestly one of the better books I've read lately. I got really invested in the main character's journey. Everything just clicked for me. Will be looking for more from this author.
Cynthia CampbellNovember 01, 2025
It was okay. The writing was fine, but I didn't feel very connected to the characters. They felt a bit flat. A generous 3 stars.
James CampbellMay 26, 2024
I liked it for the most part. The middle dragged a tiny bit, but the ending totally made up for it. I'd probably recommend it to a friend.
Kevin MillerJuly 24, 2025
Finished it in a couple of days. The writing style is very engaging. It’s easy to follow but still has a lot of depth. Definitely recommend it if you like this genre.
Andrew LopezNovember 24, 2024
Took me a few chapters to get into it, but it was worth it. Interesting premise and executed fairly well. Just a few slow chapters here and there. A solid 4 stars from me.
Susan RodriguezMarch 03, 2024
I liked it for the most part. It held my attention, even if a few things were a little predictable. A solid 4 stars from me.
Ashley ThomasMarch 13, 2025
Not bad, but not my favorite. It had some good moments, but the overall plot felt a bit disjointed in the second half. Just right down the middle.
Nicholas GreenNovember 26, 2024
Really enjoyed this one. The writing style is very engaging. It’s easy to follow but still has a lot of depth. Will be looking for more from this author.
Laura JohnsonMarch 12, 2025
Finished it in a couple of days. It has a good balance of dialogue and description. Everything felt like it moved at the right speed. Would probably read it again at some point.
Matthew PhillipsJuly 09, 2025
Good, but not quite perfect. It held my attention, even if a few things were a little predictable. Enjoyable weekend read.
Sandra CarterOctober 04, 2025
Took me a few chapters to get into it, but it was worth it. Writing is good, just wish there was a bit more depth in certain parts. Still kept my attention though. Enjoyable weekend read.
Betty JacksonJune 27, 2025
Such a great read. The writing style is very engaging. It’s easy to follow but still has a lot of depth. Worth the time and money.
Linda LewisMarch 11, 2024
A solid read. It held my attention, even if a few things were a little predictable. A solid 4 stars from me.
Charles WhiteSeptember 24, 2024
Pretty good overall. Interesting premise and executed fairly well. Just a few slow chapters here and there. I'd probably recommend it to a friend.
Richard MooreApril 16, 2025
Finished it in a couple of days. The pacing was spot on and the characters felt real. I didn't find myself getting bored at any point. A solid 5/5 for me.
Barbara RodriguezJuly 17, 2024
A very satisfying read. The author did a great job wrapping everything up at the end. No weird plot holes left behind. Would probably read it again at some point.
Melissa RobertsFebruary 11, 2025
Not bad, but not my favorite. Some parts were interesting, while others were a bit of a slog to get through. Just right down the middle.
Lisa LeeJune 16, 2025
Took me a few chapters to get into it, but it was worth it. I liked the main character, though some of the side plots were just okay. Enjoyable weekend read.
Sarah AndersonApril 23, 2024
Honestly one of the better books I've read lately. The author did a great job wrapping everything up at the end. No weird plot holes left behind. Worth the time and money.
Paul HillJuly 14, 2024
Really enjoyed this one. The author did a great job wrapping everything up at the end. No weird plot holes left behind. Will be looking for more from this author.
Amanda SanchezAugust 20, 2024
Glad someone recommended this to me. I got really invested in the main character's journey. Everything just clicked for me. Would probably read it again at some point.
Amanda SanchezJanuary 26, 2025
Really enjoyed this one. It has a good balance of dialogue and description. Everything felt like it moved at the right speed. Would probably read it again at some point.
Gary RobertsJuly 08, 2025
Good, but not quite perfect. The middle dragged a tiny bit, but the ending totally made up for it. Still a good book.
Joseph PhillipsJanuary 17, 2025
I liked it for the most part. The middle dragged a tiny bit, but the ending totally made up for it. I'd probably recommend it to a friend.
Steven HarrisApril 04, 2025
Glad someone recommended this to me. The writing style is very engaging. It’s easy to follow but still has a lot of depth. Definitely recommend it if you like this genre.
Donna YoungAugust 18, 2025
Finished it in a couple of days. The writing style is very engaging. It’s easy to follow but still has a lot of depth. Worth the time and money.
Jessica ClarkOctober 25, 2024
I was pleasantly surprised. I loved how the story unfolded. It kept me guessing without being too confusing. A solid 5/5 for me.
Gary LeeAugust 25, 2025
A very satisfying read. I got really invested in the main character's journey. Everything just clicked for me. A solid 5/5 for me.
Karen WalkerJanuary 17, 2025
An average read for me. Some parts were interesting, while others were a bit of a slog to get through. Might work better for someone else, just wasn't completely for me.