海格斯壯致力於投資著作,並包含了多本闡述巴菲特投資理念的作品。其作品包括: The Warren Buffett Portfolio: Mastering the Power of the Focus Investment Strategy The Essential Buffett: Timeless Principles for the New Economy The NASCAR Way: The Business That Drives the Sport The Detective and the Investor: Uncovering Investment Techniques from Legendary Sleuths