An ongoing online German-language survey voted him the second-most influential management thinker.

Simon has authored numerous books and writes articles for international newspapers and business magazines.

Simon's career spans three professions in his work as a management consultant, business professor, and author.

An ongoing online survey votes him a most-influential management thinker, second only to Peter Drucker.

[citation needed] Simon's books are widely read among managers and have been translated into 25 languages.