Simpsons World the Ultimate Episode Guide: Seasons 1-20

Simpsons World the Ultimate Episode Guide: Seasons 1-20 is a 1200 page book that covers the first twenty seasons of The Simpsons, from "Simpsons Roasting on an Open Fire" to "Coming to Homerica". It was released on October 26, 2010.

Contents
The book contains the following sections:
 * Introduction (page 13)
 * The Family Simpson (page 14)
 * How to Read the Guide (page 18)
 * The Shorts (page 20)
 * Seasons
 * Season 1 (page 22)
 * Season 2 (page 50)
 * Season 3 (page 102)
 * Season 4 (page 154)
 * Season 5 (page 202)
 * Season 6 (page 250)
 * Season 7 (page 304)
 * Season 8 (page 358)
 * Season 9 (page 412)
 * Season 10 (page 466)
 * Season 11 (page 518)
 * Season 12 (page 566)
 * Season 13 (page 614)
 * Season 14 (page 654)
 * Season 15 (page 712)
 * Season 16 (page 762)
 * Season 17 (page 808)
 * Season 18 (page 860)
 * Season 19 (page 910)
 * Season 20 (page 956)
 * Opening Sequences (1006)
 * Couch Gags (page 1012)
 * Homer Says D'oh! (page 1026)
 * Homer Says Mmm... (page 1036)
 * First Church of Springfield Marquees (page 1044)
 * "Itchy & Scratachy" Filmography (page 1048)
 * Merchandising, Thy Name Is Krusty (page 1060)
 * A Tribute to Troy McClure (page 1064)
 * Songs Sung Simpson (page 1066)
 * Who Does What Voice (page 1096)
 * Celebrity Guest Stars (page 1112)
 * Episode Index (page 1120)

Description
"Look what you get in this cromulent compendium!

Comprehensive episode synopses for 20 seasons of Simpsons, including 128 new gut-busting episodes never before covered! Stuff you may have missed! More screen shots than ever before! Over four hundred character profiles! Every chalkboard phrase Bart has ever written! Nifty new art throughout! Quotes and quips from all your favorite characters! Two or more jam-packed pages devoted to every episode!

As well as: And much, much more. ..
 * Every couch gag
 * A complete filmography of "Itchy & Scratchy"
 * Every "D'oh" or "Mmm..." Homer has ever uttered
 * Every song ever sung by the citizens of Springfield
 * Every marquee message from the First Church of Springfield
 * A tribute to star of stage, screen, infomercials, and filmstrips, Troy McClure
 * The largest collection of Krusty the Clown merchandise outside of Bart's bedroom
 * A complete list of celebrity guest stars

Packaged in the ultimate wraparound slipcase and weighing in at a hefty 8.8 pounds, Simpsons World The Ultimate Episode Guide (Seasons 1-20) is meant for reading, not throwing!"

Factfiles
There are factfiles on nearly every episode page, the exceptions being non-canon anthology episodes with three parts, i.e. Treehouse of Horror series episodes. These factfiles are usually characters, although they have also been objects or locations.