This book was compiled by Dr Ilona Bendefy MB, BS, MRCP (Paeds); paediatric consultant Dr Helen Moore; consultant paediatrician Dr Aiwyne Foo; childcare author Judy Barratt; Holly Markham; Dr Mary Steen RGN, RM, BHSc, PGCRM, PGDipHE, MCGI, PhD; midwife and infant feeding specialist Bella Dale RM; Dr Carol Cooper MA, MB, BChir, MRCP who was a GP, medical writer, and broadcaster; consultant clinical psychologist Dr Claire Halsey AFBPsS, ClinPsyD, MSc; registered Public Health Nutritionist Fiona Wilcock MSc, PGCE, RPHNut; Jenny Hall BSc, RGN, RN (Child); childcare author Karen Sullivan; and consultant paediatrician Dr Su Laurent MRCP, FRCPCH.