Book excerpt: Information on the special needs and natures of twins and multiples is often difficult for professionals to obtain. Twin and Triplet Psychology fills this gap, helping professionals to be better-equipped to offer advice to parents and twins alike. Examining the psychology of twinship throughout the lifespan, the book includes chapters on: * twins in-utero temperament development and inter-twin behaviour before and after birth * antenatal and postnatal influences on family relationships * twins with special needs * the death of a twin * twins in secondary school and adolescence.