There is a small sample listed below, but you can find more by coming in and asking any of us for assistance, or just browsing our stacks. Paralegal-related works books are mostly concentrated in KF section of the library.
The Professional Paralegal by 
Careers As a Paralegal and Legal Assistant by 
Ethics and Professional Responsibility for Paralegals by 
Fundamentals of California Litigation for Paralegals by 
McGraw-Hill's Torts for Paralegals by 
California Legal Research by 