This is the Introduction from the front matter of Bhagavad-gita As It Is.

Bhagavad-Gita gives knowledge of five basic truths and the relationship of each truth to the other:
These five truths are
Krishna, or God, the individual soul, the material world, action in this world, and the time.
In 1968 Srila Prabhupada did not have the funds to print his full Bhagavad-Gita As It Is. Therefore he printed the Introduction as a pamphlet. This is the reprint of the original pamphlet. This is the Introduction from the front matter of Bhagavad-Gita as It Is. This book forms a perfect start to delve in to spiritual ocean and truths propounded by Lord Krishna in the Bhagavad Gita. The Gita lucidly explains the nature of consciousness, the self, and the universe.