A bidding war for an authorized biography of the"ideas" of billionaire Warren Buffett has been won by the BantamDell Publishing Group, a division of Random House Inc.

"Our deal is with her. She is the author," Bantam president and publisher Irwyn Applebaum told The Associated Press Wednesday through spokeswoman Barbara Burg.

According to a statement issued Wednesday by Dell, the book will focus on Buffett's business strategies. It will be based on the "thousands of hours" Schroeder spent with Buffett and on "unprecedented access to his files, friends and associates."

The 75-year-old Buffett is considered of special interest both for his personal wealth, estimated by Forbes magazine at $40 billion, and his folksy style.

Buffett is known as the man who built a 1956 partnership of four relatives and three close friends into a holding company worth about $100 billion. Berkshire Hathaway Inc. owns insurance, soft drink, candy, furniture, restaurant and carpet firms.

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