Diary of a Wimpy Kid is a satirical realistic fiction novel by Jeff Kinney. It is the first book in the Diary of a Wimpy Kid series. The book is about a boy named Greg Heffley and his struggles in middle school.Diary of a Wimpy Kid first appeared on FunBrain.com in 2004, where it was read 20 million times. The abridged hardcover adaptation was released on April 1, 2007. Diary of a Wimpy Kid was named New York Times bestseller among awards and praise.