As several fans incorporated Sendak's own words into their microblog tributes, there has been many a reference to the wild rumpus.
Actress Kristin Fairlie, who did voice work for the animated film The Little Bear Movie, which was based on a book series illustrated by Sendak, honored the late author in a tweet: So honored to have worked with the brilliant #MauriceSendak, one of the worlds greatest authors and the illustrator of #LittleBear.
Several people credited Sendak with understanding children.
Maurice Sendak taught me and millions of others that it was no sin to be a child, author John Green tweeted.
Teen author Carolyn Mackler tweeted her thanks: Thank you to Maurice Sendak for sharing your genius with us. The children's book world will miss you.
A literary Twitter account with the handle @4everYA -- YA standing for Young Adult -- recognized Sendak's significance in the world of children's books: Here's to Maurice Sendak, a man who understood that respecting children is the first step towards reaching them.