We highly recommend this book, to both the experienced as well as the novice lock picker. It explains the concept of locks, the tools needed and a breakdown of virtually all locks on the market today. It is easy to read and is loaded with pictures and diagrams designed with the layman in mind.
I spent 20 minutes and read the first two chapters and was able to pick my front door in about 30 seconds the first time. I had never picked a lock before. inches