I’ve long been aware that Steve Jobs had a much deeper spirituality than most in the tech industry, but the latest leak from his biography, due out tomorrow, shows ever more than I’d expected.

So apparently, the most important book in his life, and the only book on his iPad, was Autobiography of a Yogi.

Other favorites of his include Zen Mind, Beginner’s Mind, Cutting Through Spiritual Materialism, and Be Here Now.