I have to say that I enjoyed this book, as well as my daughter who prefers to dress in the minimalist fashion (not quite the birthday suit but very close to it!). The illustrations are colorful and busy which easily lends itself to some games of I spy on each page. And while this is the story of a boy who spends most of the time naked, the illustrations are done in such a way that while you know he is naked, he is modest and it is natural.
The only drawback for my family is that we don't live in a tropical location so some of the things struck my daughter as odd. (He gets to play in the water every day? why is that woman carrying a basket on her head?!?) That did open the door for conversation about different cultures and places to live so it easily becaming a learning experience.
All in all a good book for preschoolers.