The Autism Spectrum in the 21st Century" is the definitive guide to the autism spectrum introducing the reader to key concepts & developments in diagnosis psychological & biological research theoretical models evidence-based intervention educational strategies & family issues. The book charts how developments in theory research & practice have shaped & continue to shape the evolving concept of autism which is at the core of this field. The book explores: diagnostic principles & practice & their implications for prevalence; psychological functioning in autism including sensory-perceptual cognitive & socio-cognitive processes; genetics & brain function in autism & the neurobiological basis for autism spectrum conditions; the range of therapeutic approaches available including behavioral communication-based & biological interventions & their evidence base; educational implications the options for individuals & families & the issue of inclusion; how autism affects the family unit; & overarching issues & challenges for research practice & people. " The Autism Spectrum in the 21st Century" is essential reading for anyone personally or professionally interested in autism spectrum conditions such as individuals on the spectrum & their families students & researchers clinical practitioners teachers social workers & healthcare professionals."