Some people like a brief explanation and can take it from there. For them the sites content is just fine.
In my opinion two excellent books (both over 200 pages each) are
Practical Lock Picking: A Physical Penetration Tester's Training Guide By Deviant Ollam
Visual Guide to Lock Picking (Third Edition) by Mark McCloud, Gonzalez de Santos and Mirko Jugurdzija (Jan 1, 2007) 208 pages
The books cover many topics in a lot more detail and continuity of flow than the postings on this site.
The books illustrations that accompany the text make it alot easier for many to understand.
Don't get me wrong, this site is an amazing resource and can teach you the basics. Many have learned to pick with just the content here
However you may find the experiance a lot easier with one of the better books that are out there.
A free guide that I think every picker should read is the LSI Guide with excellent photos and explanitory text.http://www.lockpickguide.com/support-files/lsiguide.pdf