Many adults live undiagnosed with Autism Spectrum Disorder (ASD), a neurodevelopmental condition that varies greatly among individuals. This article provides a guide for recognizing adult autism signs, the diagnostic process, and support after diagnosis. It details assessment tools, further evaluations, therapy options such as behavioral and social skills training, and importance of self-advocacy. Resources include books, websites, and online courses. For personalized support, consultation with healthcare professionals specializing in autism is advised.