In late 2003, ninety-four-year-old Peter Drucker invited Jeffrey Krames to his home for an unprecedented day-long interview. He spoke candidly about his seminal management principles, his enormous body of work (thirty-eight books over six decades), and the leaders he had advised over the years (including Jack Welch).

Krames used the insights he gained that day to create Inside Drucker’s Brain--a compact guide to the great man’s wisdom. Krames had no intention of writing a biography, but rather a book that would showcase Drucker’s most important ideas and strategies, and explain why they are just as useful today as they were decades ago.

Drucker’s biggest contribution was a mind-set, not a methodology. He focused on prodding managers to ask the right questions, to look beyond what they thought they knew, and to focus on tomorrow rather than yesterday. If anything, this mind-set is more valuable in the digital age than it was in the industrial age.

This user-friendly book will help readers grasp all of Drucker’s key ideas on leadership, strategy, innovation, personal effectiveness, career development, and many other topics.

Jeffrey A. Krames is the bestselling author of Jack Welch and the 4E’s of Leadership, The Welch Way, What the Best CEOs Know, and The Rumsfeld Way. He has written for The New York Times, The Wall Street Journal, Barron’s, Los Angeles Times, Chicago Tribune, and other publications. He lives outside Chicago.