This book is sweet and nostalgic--the illustrations reminded me of books that I read when I was a child. The story is super, too. Kids can relate to having friends come by and visit when they are sick. The simple story culminates with a sleepover--lovely! Imagine having zoo animals over for a sleepover!
Behind the book: the illustrator is Erin Stead and she is married to Philip who is the author of the book. What a great collaboration. Also, this is Erin's very first book. Wow, what a great start for her to win the Caldecott. Congratulations!