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" by a panel of spiritual authors convened by Philip Zaleski and HarperCollins publishers. "Autobiography of a Yogi" is the most popular among Yogananda's books. According to Philip Goldberg, who wrote "American Veda", "the Self-Realization Fellowship which represents Yogananda's Legacy, is justified in using the slogan, "The Book that Changed the Lives of Millions." It has sold more than four million copies and counting". In 2006, the publisher, Self-Realization Fellowship, honored the 60th anniversary of "Autobiography of a Yogi" "with a series of projects designed to promote the legacy of the man thousands of disciples still refer to as 'master'."