Book excerpt: Enhance your knowledge of neonatal-perinatal medicine and/or study for Neonatal-Perinatal Medicine board certification or recertification with this new study guide from the editors of NeoReviews. This new guide includes more than 1,200 questions previously published in NeoReviews from January 2007 to December 2017. Each question is followed by a short explanation of the correct answer with references, including the original article. Chapters include Cardiology Dermatology Endocrinology ENT and Ophthalmology Fluids, Electrolytes, Nutrition Gastrointestinal Genetics and Inborn Errors of Metabolism Hematology/Oncology Immunology Infectious Diseases Maternal-Fetal Medicine Neonatal Resuscitation Neurology Renal Respiratory Statistics, Research, Health Services, and Ethics