The Patio Kitchen Garden is really good info and talks a lot about how to start...
Sqare Foot Gardening is another...
How to Grow Vegetables is a short one and contains about 50 of the top veggies, herbs, and fruits. Also good for learning about composting...
Roots, Shoots, Buckets, and Boots I can not say enough good things about. My favorite starting gardening book to date! Looking up things on the internet and printing them out for reading is good too... if I run into something I have not heard of, I write it on my bookmark while I read and then come to the computer when I have the time and research it on
Google (link). Most things you will find there and it is a great way to get more information without always being at the library.
Love Val