A variety of hats afford Martin many adventures.

When Kate's little brother loses his hat, Kate, Lisa, Max, and Nick all try to think of a plan to help him find it.

Wishing to control the outcome of her father's hat contest, because she knows she must marry the winner, Princess Abigail accepts the help of a strange green lizard from the forest.

Can the perfect old hat really be replaced by a new one?

The wind blows away the farmer's hat and he finds it being used in a most surprising way.

When Henry finds a hat he is very excited by its possibilities, but becomes worried when he thinks that the hat might belong to someone else.

Sara and Susan share tea, cookies, crab cakes, and stories about hats when they visit their favorite relative, Aunt Flossie.

When Bridget loses the beret that provides her with artistic inspiration like other great artists, she thinks she will never be able to draw again. Includes facts about famous artists and reproductions of some of their paintings.

A rhyming celebration of hats, featuring all sorts of head-toppers that help create costumes for the Halloween parade.

Awakened from hibernation when an ill-fitting, gift-wrapped red wool cap falls nearby, Little Hedgehog passes along the present to Rabbit, but somehow ends up with it again by the end of the day.