A good read for GMs and Players, and not just for gaming purposes it's a good historical reference on it's own, and very well written so as not to get dry or boring, even through the minutiae. As a player since 1st edition I always liked making my character's stronghold once they were high enough level, but never had any good source to help design them realistically, defensible and serviceable. This book really helps take the stress of realistic build for the GM and helps the Players learn about strongholds, of various types, to help with their attacks, and escapes, from them. If you are looking for non-castle type living quarters I would suggest checking out volume 2: Manor Houses, and future volumes. One thing to note is that because this is mainly used for gaming purposes where a 5'-square is the standard unit of measure, some of the scale of the buildings may seem a bit large by real standards, but a 20' x 20' room is only 16 tiles and rather cozy. A good addition to any campaign setting, it will really help bring it to life!