Good read to help ensure communications address all possible audience concepts.
Excerpt: The model was developed by Friedemann Schulz von Thun, who was influenced by the work of Paul Watzlawick in its creation. Schulz von Thun believed that the four messages of any communication are:
Content (What are the facts and data I’m stating)
Self-disclosure (What i’m revealing about myself)
Appeal (What I’m seeking from the other person)
Relationship (How I relate to, think about, and regard the other person)
Because there are four kinds of ears with which we can listen, and four beaks (that’s what Schulz von Thun called the output part of the communication) with which we can transmit, the potential for miscommunication can be very high. In fact, if you were only to consider the single channels, any communication has 16 different combinations! My statement of a fact can be heard by any of your four ears, as can my communication of self-disclosure, appeal, and relationship.