This British text serves as an excellent overview of sleep disorders medicine. In a recent published review I commented that this could be considered one of the best texts available for individuals with limited training and experience in working with patients suffering from sleep disorders. This book is especially recommended for psychologists and other health care professionals due to its straightforward presentation, and balanced coverage of conditions. Fortunately this single authored text does not overwhelm the reader - it uses references sources appropriately. This is one book that belongs on the bookshelves of practitioners who do not routinely evaluate people with chronic slep disorders.