Aquelarre RPG Corebook - Rules of Play says:
Almost 25 years since it was first released in Spain, Aquelarre finally receives an English translation. This gorgeous 570-page, full-color, book is a complete roleplaying game. The brilliant artwork by Jaime Garcia Mendoza throughout the book captures Aquelarre’s dark, medieval world of demons and angels. Aquelarre offers everything you expect to find in a fantasy RPG: character creation, game system and magic system. It also includes detailed information about the medieval Iberian setting, the cosmology of angels and demons, and a bestiary.