“Neuropsychopharmacology: An Introduction” is a part of the college-level Neuropsychopharmacology course series textbooks. It is a tutorial written in questions and answers format to introduce the basic concepts of neuropsychopharmacology, which is an interdisciplinary study of neuroscience, psychology and pharmacology, integrating the neurobiological basis of psychiatric medicine in treating mental disorders.It is a study guide with in-depth explanations. Each section is a modular unit that is self-contained for easy reading. The principles and concepts are introduced systematically so students can learn and retain the materials intuitively.