The product is a textbook titled “DC: 0-5: Diagnostic Classification of Mental Health and Developmental Disorders in Infancy, Toddlerhood, and Early Childhood” published in 2016. Authored by the Zero to Three (Organization) Staff and published by Zero to Three, the book is a valuable resource for those studying psychology or medical subjects, specifically in the areas of developmental and child psychiatry. With a focus on diagnosing mental health and developmental disorders in young children, this trade paperback is written in English and serves as a comprehensive reference for professionals in the field.