The Twofish Encryption Algorithm: A 128-Bit Block Cipher

Practical Cryptography by Ferguson, Niels; Schneier, Bruce

Mastering Algorithms with C : Useful Techniques from Sorting to Encryption

Mastering Algorithms with C: Useful Techniques from Sorting to Encryption

Applied Cryptography: Protocols, Algorithms, and... by Schneier, Bruce Paperback

A Hacker's Mind: How the Powerful - Paperback, by Schneier Bruce - Very Good

Data and Goliath by Bruce Schneier Hardcover

Applied Cryptography: Protocols, Algorithms, and... by Schneier, Bruce Paperback