All my recommendations happen to be mentioned on this list, so I'll mention them here:
- Stealing the Network, a collection of short stories. One of those stories was written by Fyodor of nmap and is available online: http://insecure.org/stc/ -- this sort of works like a tutorial for nmap and networking security. :-D
- Stealing the Network, a collection of short stories. One of those stories was written by Fyodor of nmap and is available online: http://insecure.org/stc/ -- this sort of works like a tutorial for nmap and networking security. :-D
- Snow Crash by Neal Stephenson
- Cryptonomicon by Neal Stephenson
- Neuromancer by William Gibson