Van Gogh, by Eleanor Marrack, Chartwell Press, 1992.
I found this book in a thrift store, so I probably didn't pay more than a dollar for it. That doesn't mean it wouldn't have been worth more; it just means that when I saw it I thought it would be great for my six-year-old son's Easter basket.
Although the text is competent, I won't be reading it to my young son just yet. I will, however, look at the prints of the paintings with him because I believe it never too early to learn to appreciate Art.