Fetal alcohol spectrum disorders (FASD) represent a range of physical, mental, and behavioral disabilities caused by alcohol use during pregnancy, or prenatal alcohol exposure (PAE). FASDs are considered to be one of the leading preventable causes of developmental disability. Despite its high prevalence, FASD is often misdiagnosed or underdiagnosed, making interventions more challenging or delayed. his publication was initially developed for use in Spanish-speaking countries of the Americas and is intended to serve as a training workbook for providers of various disciplines to learn about the fundamentals of diagnosing FASD and to apply them to several case scenarios. It also discusses ethical implications of diagnosing FASD to the mother and child. Target audiences include physicians, psychologists, allied health professionals, social workers, and other providers that may encounter individuals affected by FASD. It is ideally used as a supplement for in-person training by experts in the fields of dysmorphology, epidemiology, and neuropsychology.