Diary of a Wimpy Kid is an American children’s book series and media franchise created by author and cartoonist Jeff Kinney. The series follows Greg Heffley, a middle-schooler who illustrates his daily life in a diary (although he constantly tells the audience that it is a journal). Since the release of the online version, most of the books have garnered positive reviews and commercial success. As of 2022, more than 275 million copies have been sold globally, making it the sixth best-selling book series of all time.