Enneagram Spectrum of Personality Styles an Introductory Guide: 25th Anniversary EditionAudiobookEnneagram Spectrum of Personality Styles an Introductory Guide: 25th Anniversary EditionbyJerome Wagner, PhDRating: 5 out of 5 stars5/5Save Enneagram Spectrum of Personality Styles an Introductory Guide: 25th Anniversary Edition for later