The Warhammer The Horus Heresy Liber Hereticus Traitor Legiones Astartes Army Book is a specialist game book published by Games Workshop for the Warhammer 40K game. This army book focuses on the Horus Heresy Liber Hereticus chapter/regiment, providing players with detailed information and rules for using these units in their games. Written in English, this book is a crucial resource for players looking to build and customize their army for epic battles on the tabletop. Perfect for fans of the Horus Heresy campaign, this army book enhances the gaming experience with immersive lore and strategic gameplay options.