Autism does not always present in clear or typical ways, especially when accompanied by other neurodevelopmental or medical conditions. Autism in Complex Presentations brings together an international team of clinicians and researchers to provide a practical, evidence-based guide to the assessment and recognition of autism in such contexts. Chapters explore the challenges professionals face when standard tools fall short: when autism is difficult to identify, when co-occurring conditions obscure the picture, and when diagnostic clarity is crucial for appropriate support. The book explores a range of key topics such as demand avoidance, selective mutism, attention-deficit/hyperactivity disorder, epilepsy, vision impairment, down syndrome, and preterm birth. Each chapter includes a clinical vignette to bridge theory and practice, alongside insights from young people and their families to highlight the lived experience of navigating complex assessment journeys.

 Designed for professionals working in paediatrics, psychiatry, psychology, neuropsychology, speech and language therapy, occupational therapy, nursing, and education, this book offers guidance for those involved in recognizing and supporting autism across a wide range of clinical settings. While not specifically written for families, its content may also be of interest to parents, carers, and individuals seeking a deeper understanding of autism in its more complex forms