Dr Laurence J. Peter
Laurence Johnston Peter (September 16, 1919 – January 12, 1990) was a Canadian educator and 'hierarchiologist' best known to the general public for the formulation of the Peter principle.
Books by Dr Laurence J. Peter

The Peter Principle
Raymond Hull
The Peter Principle – "In a hierarchy, every employee tends to rise to his own level of incompetence"