Described as a source book for Base and Prestige Classes. This book features a new Witch class. This witch has "Circle" magic and gets spells based on Wisdom as do the witches in the 3.0 book I did years ago. This witch is a nice alternative to the Pathfinder Witch. If you were to use both I would call this one a "Witch" and the APG one a "Warlock". In addition to the witch we get the Anti-Paladin, elemental wizards, gladiators, samurai and the Voyager. NPC classes include the Courtesan, Captain and Sycophant. Truthfully I only found the Courtesan useful. Prestige classes include the Child of Bast, Crypt Stalker and the Envenomed. Personally I would have liked the PrCs to be a little more related to the base classes.
There is though plenty of magic items and spells. There are also plenty of new witch-related feats.
Since I bought it for the witch alone, I am actually pretty satisfied with what I got.
[4 of 5 Stars!]