check out Greg Everett's Olympic Weightlifting: A Complete Guide for Athletes & Coaches
http://www.performancemenu.com/zen/i...roducts_id=155
Not as comprehensive as the Weightlifting Encyclopedia but pretty good for the novice. Straight forward and precise. It's like the Olympic Weightlifting version of Rippetoe's Starting Strength.
there is also another book: Tamas Feher's Olympic weightlifting
http://www.strengthsport.net/thebook.htm
Since you said you are new to OL, Greg Everett's book is a good one to start with.