The founder, Alice, has always gotten a kick out of teaching and learning almost anything. This is a place for her to display those bits of wisdom.
Paul Graham has an excellent essay, "Writing, Briefly", that succinctly lists techniques for good writing.
Alice wholeheartedly agrees with Stephen King "that telling the truth is the most important thing, much more important than the grammar" in writing; this applies to both fiction (metaphorically, that is) and nonfiction.
"How to Do What You Love" by Paul Graham was the most impactful essay that led Alice into founding this venture.