Yogoda Satsanga Society of India (YSS) is a non-profit religious organization founded by Paramahansa Yogananda in 1917. In countries outside the Indian subcontinent it is known as the Self-Realization Fellowship. The current president of the YSS/SRF is Mrinalini Mata. Paramahansa Yogananda is most noted for his book Autobiography of a Yogi which became an international bestseller and featured in the 100 Most Important Spiritual Books of the 20th Century by HarperCollins.