The Very Hungry Caterpillar

In the light of the moon a little egg lay on a leaf. One Sunday morning the warm sun came up and—pop!—out of the egg came a tiny and very hungry caterpillar.

The Very Hungry Caterpillar is a 1969 children's picture book by American author and illustrator Eric Carle. The plot follows a very hungry caterpillar that consumes a variety of foods before pupating and becoming a butterfly. It incorporates elements that contribute to early childhood education, including numbers and the days of the week.