"An Introduction to Game Theory" by Martin J. Osborne is a comprehensive textbook that covers the fundamental concepts of game theory, making it accessible to students from a variety of disciplines including mathematics and political science. Published by Oxford University Press in 2003, this hardcover book provides a detailed introduction to the subject, with a reprint offering 560 pages of valuable content. With clear language and a focus on both history and theory, this book is a valuable resource for anyone looking to deepen their understanding of game theory and its applications in various fields.