This paper explains autism as one of the developmental disorders. The aim is to define the term "autism", how it manifests in children, youth and in adults and which therapies are convenient for this disorder. Some of the most famous historical cases of autism are also mentioned. Numerous cases and causes stand out, but also some special abilities that people with autism develop. The paper points out that autism in children and youth is mostly manifested through play and the inability to make friends, while in adults is expressed in their vulnerability. Special attention is paid to the education of children with autism, which is much more accessible and adapted today. The paper also lists a number of therapeutic approaches suitable for working with people with autism, where early intervention plays a major role as a program that provides an opportunity of better personal development and relationships with the environment.