Welcome to the world of the Celts, a world of magic, shape-shifting, sorcery and divination, a world where legend and fact are mixed, where the physical world and the Otherworld blend in heroism, rituals and rites. Combining sources from mythology and archaeology with eye-witness accounts from the period, this book presents a fascinating picture of Celtic religion, worship, and deity and investigates the significance of trees, animals, bones, burial practices, kingship and cults of the head and the dead.