Shipley Communication offers several personality assessments. These assessments typically take about 15 minutes to complete and have been used to enhance the relationships and interaction of millions of people around the world since 1993. The assessments are built on the foundational work of many noted philosophers, psychologists and personality researchers, including: Empedocles, Hippocrates, Plato, Aristotle, Galen, Paraculsus, Erich Adickes, Edward Spranger, Ernst Kretschmer, Erich Fromm, Isabel Myers, and David Keirsey. These personalitologists believed that people can be roughly categorized into one of four temperaments. Everyone has a unique personality spectrum that is formed from these four major temperaments. After you complete an assessment you will receive a copy of the results by email.