Cathryn and John Sill explore slimy snails, clams, and more in their award-winning beginner's guide to mollusks, a volume from the acclaimed About... series created by author and educator Cathryn Sill. The book uses simple, easy-to-understand language to teach children what mollusks are, how they look, how they move, what they eat, and where they live. The beautifully detailed, realistic painting ...