We've been using Artistic Pursuits, which I think is a good program but my son doesn't like it. I thought I'd buy the Evan Moor book How to Teach Art to Children because it was listed as being for 1st-6th graders.
Well, that was a big mistake. We've done several lessons out of the book and made some cute designs and bookmarks, but my son thinks it is for kindergarteners. And it kind of is -- youngish.
So...if you want a good art book for K-2, buy this. I wouldn't buy it for older children that want to be more grown up.
Live and learn. Someday I'm going to move to a big town that has a bookstore. Then I'll be able to hold a book in my hands, flip through it, show it to DS and get his opinion. Of course I could have done this at the Evan Moor website...live and learn.