See what different kinds of hats people wear.

When a little turtle comes across a lost hat, he is determined to find its owner. He asks Mouse, and Rabbit, and even Crocodile if it belongs to them, but they all say it isn't theirs. Whose hat can it be?

Little people wear special hats to show their occupations.

"'Whoosh!' The wind blows a hat up into the air. ... All the animals look good wearing the hat. But whose hat is it really?"--Page [4] of cover.

Describes different tools and the jobs of people who use them.

“Combines spare text and art to deliver no small measure of laughs in another darkly comic haberdashery whodunit. . . . Hats off!” —Kirkus Reviews (starred review) When a tiny fish shoots into view wearing a round blue topper (which happens to fit him perfectly), trouble could be following close behind. So it’s a good thing a certain enormous fish hasn’t woken up. And even if he does, it’s not like he’ll ever know what happened, right? Deadpan visual humor swims to the fore in this Caldecott Medal–winning title in the celebrated hat trilogy.

In his most extraordinary book, the bestselling author of Awakenings and "poet laureate of medicine” (The New York Times) recounts the case histories of patients inhabiting the compelling world of neurological disorders, from those who are no longer able to recognize common objects to those who gain extraordinary new skills. Featuring a new preface, Oliver Sacks’s The Man Who Mistook His Wife for a Hat tells the stories of individuals afflicted with perceptual and intellectual disorders: patients who have lost their memories and with them the greater part of their pasts; who are no longer able to recognize people and common objects; whose limbs seem alien to them; who lack some skills yet are gifted with uncanny artistic or mathematical talents. In Dr. Sacks’s splendid and sympathetic telling, his patients are deeply human and his tales are studies of struggles against incredible adversity. A great healer, Sacks never loses sight of medicine’s ultimate responsibility: “the suffering, afflicted, fighting human subject.”