Toni grew up in a science-oriented family and publishes science fiction with *accurate* science.  In fact, many of her authors are scientists as well as SF writers.  She talks about the importance of communicating science.

Larry is well known in some online circles for his handling of internet arguments.  He talks about how social media is a spectator sport, what tactics are used by people *losing* an argument, and how your carefully prepared facts may get twisted into something you didn't say.

Gray worked in, and commanded Air Force facilities where complex technical information needed to be communicated both up and down the technical hierarchy.  He discusses how information content and report styles change depending on who writes, and who reads them. 

Les talks about knowing your audience, when to add more technical detail, when to take it out.  He says the most important thing you can do when communicating science... is to read your audience.

David is known as an author who makes extensive use of Subject Matter Experts.  He discusses *how* to be an expert, what the client expects, how to let it be known that you are willing and available to serve as an expert. As an historian, he also talks about the imperative for scientists to be their own best advocates.