Fantastic Alphabet Books and More

Wikijunior

http://en.wikibooks.org/wiki/Wikijunior

The aim of this project is to produce age-appropriate non-fiction books for youngsters from birth to age 12. They are richly illustrated with photographs, diagrams, sketches, and original drawings.  

Discover and enjoy:   
Alphabet — Animal Alphabet — Colors — Flower Alphabet — Food Alphabet — Numbers from 1 to 20 — Small Numbers — Maze & Drawing Book