I am grateful to both Lisa and Joshua Appignanesi for contriving between them to get me a room of my own when it was most required. Thanks are due to Tristan Hughes and Yvonne Bailey-Smith for providing two happy homes for this book and its author. I am also indebted to the bright ideas and sharp eyes of the following people: Paul Hilder, friend and sounding-board; Nicholas Laird, fellow idiot savant; Donna Poppy, meticulous in everything; Simon Prosser, as judicious an editor as one could hope for; and finally my agent, Georgia Garrett, from whom nothing escapes.