I've always enjoyed Myers Briggs theory since it's been so well-researched ("Do What You Are" comes to mind). In the same way MB is directly applicable to matching personalities with career fields, WYPP is directly applicable to matching personalities with presentation styles.
I have some familiarity with the author and his work outside of this book -- he and his team (Ethos3) really are presentation gurus. And the book, as promised, delivers a clear model for finding your presentation strengths.
Anyway, I attended a conference where I was also a workshop presenter. Most of the presentations were filled with boring bullet points and presenters reading off their slides. I was the least experienced presenter, but running with my strengths of 'vulnerability' (willing to share personal stories, a lively one-on-one style of speaking, etc.), warmth, inspiration, and relatability, the conference coordinator and audience both seemed thrilled with the presentation. People asked questions, silly joke moments seemed to land, and several strangers went out of their way later in the day to say how much they enjoyed it. I'll take it!