Frog & Toad All Year (Four Books in A Book Set) contains five stories written by Arnold Lobel, a famous American children literature writer and illustrator, and it shows the warm friendship of the frog and the toad.Frog & Toad All Year (Four Books in A Book Set) contains five stories written by Arnold Lobel, a famous American children literature writer and illustrator, and it shows the warm friendship of the frog and the toad.