Darian Leader is a psychoanalyst and the author of Introducing Lacan , Why do Women Write More Letters Than They Post? , Promises Lovers Make When It Gets Late , Freud's Footnotes , Stealing the Mona Lisa , Why do People Get Ill , co-written with David Corfield, The New Black , What Is Madness, Strictly Bipolar, Hands and Why Can't We Sleep? He practises psychoanalysis in London, and he is a founding member of the Centre for Freudian Analysis and Research and a member of the College of Psychoanalysts UK.