'A really useful textbook, full of thought-provoking questions. Green's book is sensitive to the common problems A-Level and undergraduate students face as they grapple with these concepts and it provides a helpful resource that eases the reader through these fascinating and important topics. Overall, it is an excellent book, and a great addtion to the bookshelf.' - Graham Mitchell, Principal Lecturer and Course Leader in Psychology, University of Northampton

Like food and water, sleep is essential for all. In this excellent study aid, the author looks at the nature and purpose of sleeping andrelated disorders, dreamingand hypnosis. This clear and focused introductionprovides a fantasticentry point for studentsseeking a deeper understanding of altered states of awareness.