The Story of Diva and Flea is a 2015 children's book written by Mo Willems and it is illustrated by Tony DiTerlizzi.

[1][2] It is based on a real pair of animals that the author met in Paris.

[3] Publishers Weekly gave the book a positive review and noted it was "instantly fit for translation" to film,[1] and a different PW column called it "a small modern classic".

[2] In a starred review, School Library Journal praised DiTerlizzi's illustrations.

[4] The Wall Street Journal compared it to the 1970 film The Aristocats.