My kids and I love and highly recommend the books The Hiccupotamus and Chuckling Ducklings by author/illustrator Aaron Zenz.
The Hiccupotamus is colorful, fun, and just plain silly! We like the crazy rhymes (Have you ever said criss-crosserous or strawcerous?) and laugh every time!
Chuckling Ducklings couldn't be any more adorable! It's an educational book about the names of baby animals. See some of the artwork from Chuckling Ducklings on Bookie Woogie.