About Peter Drucker:
Peter Ferdinand Drucker was an Austrian-born American management consultant, educator, and author, whose writings contributed to the philosophical and practical foundations of the modern business corporation. He was also a leader in the development of management education, he invented the concept known as management by objectives and self-control, and he has been described as "the founder of modern management".
Most of what we call management consists of making it difficult for people to get their work done.
Peter Drucker