I've had this book since it came out, but I think this must be the first time I've actually sat down and read the entire thing. I almost wish I hadn't, because it is a fairly flawed book. Sure, it is what it purports to be: an episode guide to popular prime-time cartoon The Simpsons, up to the point of its publication (it covers all the Tracey Ullman shorts, and seasons 1-8). If it had stopped with just the synopses, writers, directors, and profiles of key characters (even including the laborious 'Couch Gags,' 'Krusty Merchandise' and 'Itchy & Scratchy Shorts' pages), this colourful and attractively-made tome would have been fine. However, they tried to go further and it proves the books weakness.
Perhaps, if the editors had stuck to the bare facts, this fairly dry book would have been utterly humourless. And perhaps realising this, they added 'Show Highlights' to each episode, which are basically just snatches of dialogue from the appropriate episode, and 'Stuff You May Have Missed,' which is a noticably spare selection of freeze-frame gags and other things that may have gone by too quickly for the casual viewer. As it turns out, they could have cut back the number of quotes and concentrated more on actual freeze-frame-reliant gags (there isn't a single mention of the long, high-speed lists that were used at least twice up to this point) or even given more attention to the countless pop-culture/media references in the series (there are highlighted 'Movie Moments,' but just as many are wrong or missed as are there at all). There are a handful of other errors that can be blamed on poor editing and/or weak research.
The greatest reason for having this book (at least for an animation idiot like me) is for the (incomplete but still informative) listing of the regular voice-cast and which voices are theirs; this is the biggest bit of information the book has to offer which can't really be gotten from the show itself.
So, for the hardcore Simpsons geek (like yours truly), this is a nice-looking book but doesn't really offer much beyond what one could glean just by watching the shows over and over. For casual Simpsons fans, it's a nice-looking book that gives more information than you're likely to know but drains away most of the fun and charm that has made the show carry on long past a reasonable time for cancellation.