- Warriors and Wilderness in Medieval Britain: From Arthur and Beowulf to Sir Gawain and Robin Hood
- The Druids and King Arthur: A New View of Early Britain
- The Communicative Syllabus: A Systemic-Functional Approach to Language Teaching
- From Sacred Waters and Pagan Goddesses to Holy Wells: The cult of saints and the Virgin Mary in medieval Britain
- Religion in Britain from the Megaliths to Arthur: An Archaeological and Mythological Exploration