We would like to thank Penelope Woolf (then at Pitman Publishing) for starting us off on this project and for her support in the early stages, and Sadie McClelland for taking over this task at a later stage and being unfailingly supportive and helpful, and remaining cheerful at all times. We must also thank Linda Saddington and Moira Dearden, who inestimably facilitated the production of this book.