This book presents cutting edge work and recent findings in the areas of language development, social skills, and behavioural functioning in pre-school children with and without disabilities. Each chapter is of high quality, using rigorous methodology, strong research designs, and sophisticated data analysis. The book brings the unique gathering of minds with backgrounds in early childhood special education and psychology. Authors of the chapters produce high quality research on important issues such as evidence-based interventions for young children with disabilities, including autism spectrum disorders, and challenging behaviour. Other critical topics addressed in the book include the negative impact of risk factors on child development, and screening and early identification of behavioural problems in young children. If you are a teacher or a parent who has a child with a social skills or language difficulty, the information provided in this book can assist you in helping this child navigate the social and language environment and achieve success in the early childhood classroom. The screening and early identification information is useful as a background resource for those navigating the special education assessment process.