This document discusses early childhood development and developmental delays. It begins by explaining the importance of early childhood development between birth and age 8. It then discusses the current status of early childhood development globally and in Egypt. Key points include developmental delays being common, affecting 1 in 6 children, and early childhood education attendance and quality varying greatly between socioeconomic groups. The document also defines developmental delay and developmental quotients. It discusses international classification systems like ICD and ICF and their application to early childhood. Early identification, assessment, and intervention services are important for children with developmental delays or disabilities.