From the back:
"The Book of Roguish Luck offers the new Luck rules subsystem for all classes, plus the bandit, gutter mage, and shadow thief core classes and four prestige classes. In addition, it presents expanded guild rules, a new school of rogue spells, shadow magic, over 30 new feats including the Rogue and Luck types, and expanded sneak attack rules. Gamble, cheat, and play with panache!"