The Snowball: Warren Buffett and the Business of Life

Schroeder, a former insurance analyst who covered Berkshire, was given full access by Buffett over five years, including his files and instruction to friends to speak candidly. The book is around eight hundred pages and covers his life from childhood through 2008.

The investment material benefits from Schroeder's professional background. She explains the partnership arithmetic, the insurance operations and the reinsurance business with a precision that general biographers do not achieve. The account of the 1998 General Re acquisition, the Salomon Brothers rescue and the long avoidance of technology stocks are all handled analytically.

The personal material is what makes the book distinctive and what caused the falling out between Schroeder and Buffett after publication. She documents his emotional dependence on Susan Buffett, the arrangement by which Susan moved to San Francisco and introduced Astrid Menks into the household, his absence from his children's lives, his difficulty with confrontation which meant he avoided firing people, and the compulsive quality of his interest in money from early childhood. The inner scorecard, meaning judging yourself by your own standards rather than by external opinion, is Schroeder's framing device and comes from Buffett's own language.

The length is a real barrier and the early chapters move slowly. Schroeder includes a great deal of family material that readers seeking investment content will skip. Buffett reportedly disliked the portrait, which suggests the access did not compromise the result. Lowenstein's biography is shorter and more focused on the investments. This is the fuller account of the person and of how the temperament produced the record.