In looking for children's books about art, you must get the book "Children's Books About Art : An Annotated Bibliography with Classroom Activities" by Barbara Ivy.
It is a Dale Seymour publication and runs $12.95
It is an incredibly useful resource, when I first spied this title at an Art Teachers Convention , I felt like I had just found buried treasure. I know it will assist you in your search .
Have fun buying, Chris B. :)