One night, after thinking it over for some time, Harold decided to go for a walk in the moonlight. So begins this gentle story that shows just how far your imagination can take you. Armed only with an oversized purple crayon, young Harold draws himself a landscape full of beauty and excitement. But this is no hare-brained, impulsive flight of fantasy. Cherubic, round-headed Harold conducts his adventure with the utmost prudence, letting his imagination run free, but keeping his wits about him all the while. He takes the necessary purple-crayon precautions: drawing landmarks to ensure he won't get lost; sketching a boat when he finds himself in deep water; and creating a purple pie picnic when he feels the first pangs of hunger.

They're back: Calvin, the six-year-old dirty tricksmeister and master of indignation and his warm, cuddly philosopher sidekick, Hobbes. A tiger whose idea of adventure is to lie on his back by the fire and have his stomach rubbed. In six short years, this unlikely duo has captured the hearts, the minds, and, most of all, the funny bones of America.

This treasury collection contains a never-before-published full-color section, as well as the cartoons appearing in The Revenge of the Baby-Sat and Scientific Progress Goes "Boink." All Sunday cartoons are presented full-page and full-color.