In 1822 William Hazlitt, forty-four years old and married, was both tormented and enchanted by Sarah Walker, his landlady's nineteen-year-old daughter. Liber Amoris is the chronicle of that obsession, an extraordinary fragment of Romantic autobiography that explores the unstable nature of what individuals perceive as 'truth', the unknowability of others, and leaves the reader unsure of who is victim, who seducer in this haunting relationship. Gregory Dart sets Liber Amoris in its context of Hazlitt's other writings from 1822-3, and provides a wealth of fascinating notes that take us deep into the period and the writer's imagination.