Over the past 3 decades, there has been an unprecedented increase in students identified as eligible for special education as a result of students meeting criteria for autism spectrum disorder (ASD). The increasing number of students with ASD in the schools presents significant challenges to teachers, school psychologists, and other school professionals working with this population. Although there is considerable research addressing assessment, identification, and support services for children with ASD, there is a need for further research focused on these topics within the school context. Employing a diverse array of methodologies, the articles in this special topic section address several gaps in the literature, including (a) the application of evidence-based programs within the school context, (b) the social validity of well-established evidence-based practices with both parents and educators, (c) the assessment of social communication, (d) intervention and assessment of spatial and body awareness for children with ASD, (e) the use of peer-mediated discreet trial training, and (f) discrepancies across informants for both externalizing and internalizing symptoms associated with ASD. The results of these studies provide school psychologists and other education professionals with specific directions for advocacy and service delivery that aim to enhance school outcomes for students with ASD. (PsycINFO Database Record