Enneagram of Personality

The Enneagram of Personality is a typing system of nine connected types of personalities. 
Today, Enneagram theories are mostly from Oscar Ichazo from the 1950s and Claudio Naranjo from the 1970s. Older history of ideas associated with the Enneagram of Personality are not agreed on. 
The Enneagram of Personality is popular in business management and spirituality development using books and DVDs. In business it is used to find out into how employees can work together. In spirituality it is shown as a path to self-improvement and enlightenment. Both say it can aid in self-awareness and self-understanding.
Criticism.
The Enneagram mixes ideas usually accepted in the theory of personality but it has been sent away and called pseudoscience by some personality assessment experts.
The Enneagram is criticised for having no basis in scientific fact.