Key to Kama sutra: The Original Classic book (Annotated): Gateway to Human Sexual Behavior:Techniques to Improve your Sex Life

The Kama Sutra is an ancient Indian Hindu text widely considered to be the standard work on human sexual behavior in Sanskrit literature written by Vātsyāyana. A portion of the work consists of practical advice on sexual intercourse. It is largely in prose, with many inserted anustubh poetry verses. "Kāma" which is one of the four goals of Hindu life, means desire including sexual desire the latter being the subject of the textbook, and "sūtra" literally means a thread or line that holds things together, and more metaphorically refers to an aphorism (or line, rule, formula), or a collection of such aphorisms in the form of a manual. Contrary to popular perception, especially in the western world, Kama sutra is not exclusively a sex manual; it presents itself as a guide to a virtuous and gracious living that discusses the nature of love, family life and other aspects pertaining to pleasure oriented faculties of human life.

The Kama Sutra is the oldest and most notable of a group of texts known generically as Kama Shastra (Sanskrit: Kāma Śāstra).

Historians attribute Kamasutra to be composed between 400 BCE and 200 CE. John Keay says that the Kama Sutra is a compendium that was collected into its present form in the 2nd century CE.