With candy, bunnies, and chicks all around, it's not surprising that the Easter holiday has inspired some great children's books. We tracked down 15 of our faves. Some bring brand-new bunnies and eggs to bookshelves, while others are literary classics — from Margaret Wise Brown's beloved Runaway Bunny to The Tale of Peter Rabbit, which is now more than 110 years old — that every kid's library should have.