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Code breaker, spy hunter : how Elizabeth Friedman changed the course of two world wars by Wallmark, Laurie 

BTSB Prebound(Abrams Books for Young Readers, 2021)

BTSB #: 917452 Available

Dewey: 652/BAges: 6-9   
AR: 6.3 MG F&P: U

Subjects: Friedman, Elizebeth,|d1892-1980 United States.|bCentral Intelligence Agency Ciphers Cryptography Intelligence officers

Summary: A picture book biography of Elizebeth Friedman, a brilliant American code breaker who smashed Nazi spy rings, took down gangsters, and created the CIA's first cryptology unit.

Code makers & code breakers [Beyond The Battlefield]by Wells, Allen R. 

BTSB Prebound(Rourke Educational Media, 2021)

BTSB #: 933254 Available

Dewey: 355/NAges: 9-12   
Lexile: 970

Subjects: Ciphers Cryptography Military art and science

Summary: Uncovers the amazing tales of courageous and innovative people and groups who created--and cracked--seemingly unbreakable codes during times of war.

15.77 *

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

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.

31.38 *

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