Paizo Publishing will release Pathfinder Roleplaying Game: Ultimate Campaign, a 256-page full-color hardcover, in April.  The new hardcover volume, described as a tool for both palyers and GMs to help "bring life to the campaign world outside the dungeon," will retail for $39.99.
The contents will include a system for generating character and NPC backgrounds; new story feats that tie the character’s background into the game; a system for tracking what a character does between adventures; new systems to expand play, including fame, honor, and relationships; rule for building and maintaining a kingdome, a systm for taking kingdoms and larger armies to war; and more.

The Pathfinder RPG: Ultimate Campaign is written by Jason Bulmahn.