Hagstrom, a principal in a Philadelphia investment firm, describes the investment strategies and techniques used by Warren Buffett to realize enormous success as a professional investor. Aiming his analysis at the individual investor, Hagstrom reviews the influence of Buffett's mentors, Ben Graham and Philip Fisher, and illustrates Buffett's synthesis of their investment philosophies. Hagstrom provides case studies of Buffett's major investments, showing the qualities of the companies that had appeal. Buffett's investment philosophy espouses long-term investing, respect for good management, and recognition of the value of a business franchise. This insightful work is a worthwhile complement to Graham's classic writings, considered essential for new investors.-Joseph Barth, U.S. Military Acad. Lib., West Point, N.Y.