Books by Don Richard Riso

The Riso-Hudson Enneagram Type Indicator (Rheti, Version 2.5) (1998)
This is the Riso-Hudson Enneagram Type Indicator (RHETI) Version 2.5 in booklet form. The RHETI prod...

Discovering Your Personality Type (2003)
The best general introduction to the enneagram is newly revised and simplified, featuring the new, s...

Personality Types (1996)
" The Enneagram is an extraordinary framework for understanding more about ourselves. No matter from...