"The Simpsons World The Ultimate Episode Guide Seasons 1-20 Hardcover" is a comprehensive book published in 2010 by HarperCollins. Written by Matt Groening, the book delves into the humour and trivia of the popular animated series. This hardcover edition features a collection of comics, cartoons, and puzzles, making it a must-have for fans of The Simpsons. With its detailed episode guide, this book is sure to provide hours of entertainment and laughter for any fan of the iconic TV show."