David Murray "Dav" Pilkey Jr. (/deɪv/; born March 4, 1966)[1] is an American comic book writer of children's fiction.

[9] Pilkey took a break from writing for a few years to care for his terminally ill father (who died on November 13, 2008), but in 2009 agreed with Scholastic to publish four new books.

Pilkey will donate his entire advance, past, and future royalties from the book to organizations promoting diversity that are designed to stop violence against Asians.

Dav Pilkey used watercolors purchased at a local grocery store to paint the illustrations in these books.

Pilkey authored the Super Diaper Baby books and Ook and Gluk under the pseudonyms of George Beard and Harold Hutchins, who are two of the main characters in the Captain Underpants series.

[16] Dog Man is also a spin-off of Captain Underpants, similarly said to be written and illustrated by George Beard and Harold Hutchins.