Cryptography and Network Security: Principles and Practice (6th ...
William Stallings
So long, and thanks for all the fish
Douglas Adams
The Hitchhiker's Guide to the Galaxy (4)
Modern Operating Systems (4th Edition)
Herbert Bos
The Art of Computer Programming: Combinational Algorithms, Part ...
Donald E. Knuth
The Art of Computer Programming (4)
The Book of PF: A No-Nonsense Guide to the OpenBSD Firewall
Peter N. M. Hansteen