Inspired by Carl Jung’s ‘Cognitive Functions’, as well as the more specific Jung-derived classification system of MBTI®. CPT is the result of over a hundred case studies and applications of Jungian personality theory, proposing a method of personality typing centered around individual variation, and the means through which an individual may develop.

CPT proposes type as a set of cognitive parameters that can with patience and understanding be overcome - the goal of this system is not to give people a set of letters to define who they are but rather to impart a set of tools with which to overcome our self-imposed limitations.

This second edition includes substantial reworking and elaboration, as well as an entirely new chapter on cognitive fluidity.

This book covers the fundamentals of CPT, with the more advanced aspects of the system to be explored in later works.