This 128-page hardcover book contains:
- Background material detailing the history, culture, and organisation of the Skaven, in all their twisted glory
- A thorough description of each unit, combining detailed photography, artwork, and background material
- Faction rules including five battle traits, four battle formations, three heroic traits, and three artefacts of power
- Three Spells, three Prayers, and three Manifestations
- 43 warscrolls, for units, terrain, and Manifestations
- Spearhead guide, including gameplay and hobby advice, along with its own set of warscrolls and army abilities
- Narrative Path to Glory rules, including the Anvil of Apotheosis allowing you to create your own hero
- Rules for two thematic Armies of Renown, and two Regiments of Renown that can be added into other Chaos armies
- A handy reference section with army abilities, spells, and battle traits

This book contains a unique digital code for use with Warhammer Age of Sigmar: The App.