A worker whose main capital is knowledge
Typical examples of knowledge workers may include software engineers, doctors, architects, engineers, scientists, public accountants, lawyers, and academics, whose job is to "think for a living", as described in a widely acknowledged book by T. H.Davenport .
 Davenport, Thomas H. (2005). Thinking For A Living: How to Get Better Performance and Results From Knowledge Workers. Boston: Harvard Business School Press. ISBN 1-59139-423-6