Warhammer 40K Codex: Imperial Agents 10th Edition.

Inside this 128-page hardback book, you'll find:
– Background material and lore for the various different types of Imperial Agents
– Artwork and photography to inspire your own collection
– Full rules for using Imperial Agents in your games, with 26 datasheets for each available unit, including Deathwatch, Assassins, Grey Knights, Sisters of Battle, Imperial Navy, Adeptus Arbites, and more, plus four Detachments
– A full set of rules for running your own Shadow Operations narrative Crusade campaign, as well as playing Combat Patrol skirmishes

This book also contains a one-use code to unlock Codex: Imperial Agents content in Warhammer 40,000: The App.