TY  - BOOK
AU  - Singh,Simon
TI  - The code book: how to make it, break it, hack it, crack it 
SN  - 0329332619
AV  - TK5102.92 .S56 2003
U1  - 652/.8 22
PY  - 2003///], c2001
CY  - New York
PB  - Delacorte Press
KW  - Coding theory
KW  - Cryptography
KW  - Ciphers
KW  - History
KW  - sears
N1  - Includes bibliographical references (p. 255-259) and index; Booklist; Horn Book; Wilson's Junior High School; Young Adult; Follett Library Resources
N2  - Examines the evolution of codes and their impact on history, looking at key turning points in the development of codes, and explains why codes are relevant in the modern world, discussing the role of encryption in everyday life
ER  -