We have read his work. Here's an article about the terms he coined. This was remarkable when he had defined them. Read about words such as Bystander, Lifelong learning, profitability, Schumpeter, Zen, Yardsticks, and many more. What makes this article interesting is they share the background to the words as well.
Much of the business lexicon bruited about in offices—from "knowledge worker" to "management by objective"—can be traced to Druckerian coinage. For decades, harried CEOs have restructured their work lives based on Drucker's almost Zen insights about efficiency and time management. His pronouncements on customers, marketing, and profitability deserve to be framed and hung in every corner office to remind business leaders where their priorities should lie.
[The Wisdom of Peter Drucker from A to Z](http://www.inc.com/articles/2009/11/Drucker.html)
Much of the business lexicon bruited about in offices—from "knowledge worker" to "management by objective"—can be traced to Druckerian coinage. For decades, harried CEOs have restructured their work lives based on Drucker's almost Zen insights about efficiency and time management. His pronouncements on customers, marketing, and profitability deserve to be framed and hung in every corner office to remind business leaders where their priorities should lie.
[The Wisdom of Peter Drucker from A to Z](http://www.inc.com/articles/2009/11/Drucker.html)