5In recent years, the medical and psychiatric community's understanding of autism spectrum disorder (ASD) has evolved considerably. It is now recognized as a range of conditions that can cause social, behavioral, and communication difficulties, though it manifests differently from person to person. This title will help readers better understand the changing perspectives on what causes autism spectrum disorder, how it presents in different people, and the therapies available to people with autism spectrum disorder. It will also examine changing attitudes toward neurodiversity, or the natural differences in how people think, behave, and experience the world around them.