What is a Knowledge Worker?

Peter Drucker coined the term "knowledge worker" in his book "The Landmarks of Tomorrow" and deemed anyone who worked primarily with information or developed and used knowledge in the workplace to be a knowledge worker.

Drucker also considered a knowledge worker's productivity to be "the next frontier of management." Yet in 2013, we're still trying to get the most out of our knowledge workers.

Today, most view the definition of a knowledge worker like Alexander Kjerulf: anyone who works with information rather than physically producing stuff.