From Bhaktivedanta Book Trust (BBTI):
By His Divine Grace A.C. Bhaktivedanta Swami Prabhupada The largest-selling edition of the Gita in the Western world, Bhagavad-gita As It Is is more than a book. It is alive with knowledge and devotion; thus it has the power to change your life for the better. Bhagavad-gita is knowledge of five basic truths: Krishna, or God, the individual soul, the material world, action in this world, and time. The Gita lucidly explains the nature of consciousness, the self, and the universe. It is the essence of India's spiritual wisdom, the answers to questions posed by philosophers for centuries. In translating the Gita, A. C. Bhaktivedanta Swami Prabhupada has remained loyal to the intended meaning of Krishna's words, unlocking the secrets of the ancient knowledge of the Gita and placed them before us as an exciting opportunity for self-improvement and spiritual fulfillment.