(CNN) -- The author and artist of "The Very Hungry Caterpillar" and many other popular children's books has died.
Eric Carle was 91-years-old.

On his Twitter account, his team announced his death on Sunday.
"The Very Hungry Caterpillar" was published in 1969. Carle's website says it has been translated into 66 languages and has sold more than 50 million copies.
He and his late wife opened "The Eric Carle Museum of Picture Book Art" in Massachusetts in 2002.
Throughout his life, Carle was awarded honorary degrees from more than 5 universities.