Book excerpt: Autistic people often feel they have to present as neurotypical or perform neurotypical social behaviours in order to fit in. So-called 'masking' is a social survival strategy used by autistic people in situations where neurodiversity is not understood or welcomed. While this is a commonly observed phenomenon in the autistic community, the complexities of masking are still not widely understood. This book combines the latest research with personal case studies detailing autistic experiences of masking. It explains what masking is and the various strategies used to mask in social situations. The research also delves into the psychology behind masking and the specifics of masking at school, at social events with peers, and at work. The book looks at the consequences of masking, including the toll it can have on mental and physical health, and suggests guidance for family, professionals, and employers to ameliorate negative effects. With a diverse range of voices, including perspectives across gender, ethnicity and age, this is the comprehensive guide to masking and how to support autistic people who mask.