How to face the Socratic riddle? This book offers some clues to address the problem of Socrates and the Socratic philosophies from different perspectives that include the problem of Socrates and the Socratic environment, Plato's Socrates, the Socratic lines, with special attention to Antisthenes, the Megarics, the Cyrenaics, Xenophon and Aeschines, and the Socratic reception in important ancient authors.