This book presents an introduction to the Characters, a collection of thirty amusing descriptions of character types who lived in Athens in the fourth century BCE. The author of the work, Theophrastus, was Aristotle's colleague, his immediate successor and head of his philosophical school for thirty-five years. Pertsinidis' lively, original and scholarly monograph introduces Theophrastus as a Greek philosopher. It also outlines the remarkable influence of the Characters as a literary work and　provides a detailed discussion of the work's purpose and its connection with　comedy, ethics and rhetoric.