Includes bibliographical references (pages 149-153) and indexes.

achine generated contents note: 1.The Importance of Early Identification of Autism Spectrum Disorder -- Why Early Intervention? -- How Early Can ASD Be Detected? -- 2.Sources of Variability in Autism Spectrum Disorder in Young Children -- The ASD Symptom Profile -- Sources of Variability in ASD Symptom Presentation Across Children -- Core Symptoms -- 3.Communication in Young Children with Autism Spectrum Disorder -- The "Spectrum" of Language Delay and Difference in ASD -- The Subdomains of Language Development -- Pragmatics, or the Social Use of Language: The Core Communication Symptom in ASD -- Atypical Language -- Summary -- 4.Social Interaction in Young Children with Autism Spectrum Disorder -- The Social Life of the Typically Developing Child -- Social Engagement and Interest: Specific Behaviors that Imply a Child's Social Motivation and Basic Capacities to Engage with Others -- Emotional Signaling: Sharing Emotion and Signaling Internal Affective States

"This unique visual guide aims to equip readers with the skills to recognise ASD in children as young as 15-18 months old. ... From social interaction to communication to restricted and repetitive behaviors, each chapter focuses on key symptoms and uses photographs to illustrate and enhance understanding of presenting or absent behaviors."-- Publisher's website.