The Art of Intrusion
Author Kevin Mitnick & William Simon
Whereas the stories in Mitnick's earlier The Art of Deception tended to sound the same, the tales here are all different and entertaining (as well as slightly disturbing...).
The stories are all allegedly true and, while few are verifiable, the lessons are still relevant.
If you are having trouble getting security budget, leave a copy of this on your manager's desk. Just don't expect to get it back.