This is a book for the Dungeons aNd Dragons 3.5 and it comtains all you will ever need to impliment undead into your campaign as a DM or a player.

It gives stats and rules to put undead into the party as players or NPCs.

It helps you use undead as a race and how it interplays with a core class such as a a vampire wizard.

They also go into prestigue classes for higher level parties.

They also have more feats and spells to add flavor to your player characters.

It also goes into a propert list of monsters and an awesome beastiary.