Stargate SG-1 The Illustrated Companion, Seasons 5 and 6
These books are absolutely delightful the way they have done them. One of the things that is absolutely hilarious are the quotes from O'Neill. An incredible sense of humor he has.
Each episode has a regular cast list and a guest cast list, along with who wrote and who directed the episode. This is along with a summary of what happened in the episode.
After the regular episodes there's information on the main characters and recurring characters, followed by a section on production design, visual effects, costume design, locations, and then a section about the fans. This is a really good and very enjoyable book for fans of the series.