Over 500,000 people of all ages in the UK have disorders in the autistic spectrum. About one-third also have varying degrees of learning difficulty. All of them have impairment of social interaction, communication and imagination - to them the world appears a bewildering and sometimes frightening place. This guide explains how people with autism experience the world and why they need an organized, structured environment. Ways of improving communication, developing abilities and enlarging social interaction are described, and advice is given on coping with stresses within the family.