Book excerpt: Originally published in 1935, this book provides a detailed history of the employment of mercenaries in the Hellenistic period. Griffith discusses how and why mercenaries were used after the death of Alexander the Great by the Seleucids, Ptolemies, the Greek League and other powers active before the rise of Rome, and includes a section contrasting the pay and maintenance of mercenaries in the classical period with that of the Hellenistic period. This book will be of value to anyone with an interest in ancient history and one of the ancient world's most important professions.