Chester Nez and the unbreakable code : a Navajo code talker's story by Bruchac, Joseph 

BTSB Prebound(Whitman, 2018)

BTSB #: 163255 Available

Dewey: 940.54/BAges: 7-9   
AR: 4.8 MG RC: 4.7 3-5 Lexile: 780

Genres:

Subjects: Nez, Chester United States.|bMarine Corps - Biography Navajo code talkers World War, 1939-1945 - Cryptography World War, 1939-1945 - American personal narratives World War, 1939-1945 - Indian participation Marines - United States - Biography Navajo Indians - Biography

Summary: As a boy, Chester Nez was taught his native language and culture were useless, but he was later called on to use his Navajo language to help create an unbreakable military code during WWII.

Code girls : the true story of the American women who secretly broke codes in World War II by Mundy, Liza 

BTSB Prebound(Little, Brown, 2018)

BTSB #: 611429 Available

Dewey: 940.54/NAges: 12-16   
AR: 7.7 MG RC: 9.4 6-8 Lexile: 1050 F&P: Z

Genres:

Subjects: World War, 1939-1945 - Cryptography World War, 1939-1945 - Female participation Cryptographers - United States - History|y20th century Cryptography - United States - History|y20th century

Summary: A nonfiction chronicle of the courageous efforts of remarkable young women recruited by the US government to crack German and Japanese military codes during World War II.

Codes, ciphers, and cartography : math goes to war [STEM on the battlefield]by Burrows, Terry 

BTSB Prebound(Lerner, 2018)

BTSB #: 175670 Available

Dewey: 652/NAges: 9-12   
AR: 6.4 MG RC: 6.6 3-5 Lexile: 930

Genres:

Subjects: Ciphers Cryptography Cartography World War, 1939-1945 - Cryptography

Summary: Math has always been key to warfare. From making sure an army has enough supplies to recording casualties and damage, discover how math and calculations lie at the heart of warfare.

Navajo code talkers by Lewis, J. Patrick 

BTSB Prebound(Creative Editions, 2016)

BTSB #: 568463 Available

Dewey: 940.54/NAges: 7-9   
AR: 6.3 LG Lexile: 980

Genres:

Subjects: United States.|bMarine Corps - Indian troops World War, 1939-1945 - Cryptography World War, 1939-1945 - Native American participation Navajo language Navajo code talkers Navajo Indians - History|y20th century

Summary: Amidst a complicated history of mistreatment by and distrust of the American government, the Navajo people--especially bilingual code talkers--helped the Allies win World War II.