Paramahansa Yogananda (5 January 1893 – 7 March 1952), was an Indian yogi and guru who introduced millions of westerners to the teachings of meditation and Kriya Yoga through his book, Autobiography of a Yogi.

In 1946, Yogananda published his life story, Autobiography of a Yogi. It has since been translated into 45 languages. In 1999, it was designated one of the "100 Most Important Spiritual Books of the 20th Century". 

Autobiography of a Yogi describes Yogananda's spiritual search for enlightenment, in addition to encounters with notable spiritual figures such as Therese Neumann, Anandamayi Ma, Vishuddhananda Paramahansa, Mohandas Gandhi, Nobel laureate in literature Rabindranath Tagore, noted plant scientist Luther Burbank (the book is 'Dedicated to the Memory of Luther Burbank, An American Saint'), famous Indian scientist Sir Jagadish Chandra Bose and Nobel laureate in physics Sir C. V. Raman. One notable chapter of this book is "The Law of Miracles", where he gives scientific explanations for seemingly miraculous feats. He writes: "the word 'impossible' is becoming less prominent in man's vocabulary."

The Autobiography has been an inspiration for many people including Steve Jobs (1955–2011), co-founder, former chairman, and chief executive officer of Apple Inc. In the book Steve Jobs: A Biography the author writes that in preparation for a trip, Mr. Jobs downloaded onto his iPad2, the Autobiography of a Yogi, "the guide to meditation and spirituality that he had first read as a teenager, then re-read in India and had read once a year ever since."