From publisher blurb:

Ever wanted specific rules for a beautiful courtesan cohort just gained through the leadership feat, or the armorer making your new shield? Perhaps you fancied yourself a master weaponcrafter but found no rules detailing your interests?

Guilds and Adventurers is a guidebook detailing 30 universal guild prestige and NPC classes useable in any setting by players, their henchmen, and NPCs alike.

However, it does not stop there.

In addition, it holds within its pages a collection of 10 unusual guilds and adventuring societies for use in, but not exclusive to, "The Hunt: Rise of Evil" fantasy setting.

Guilds and Adventurers is a must-have for your d20 campaign.