Writing Flash is a guide to writing and selling ultra-short fiction. Its target audience is professional writers and aspiring professional writers. This audience is reading the book purely for professional information, so the cover should be no-nonsense, no-frills, and no-BS, to give an impression of honesty and authoritative information.
However, the cover should also convey a sense of opportunity, anticipation, and confidence. The main message of the book is that here is an appealing market for professional writers.
The final emotional factor is that, since the book is about writing extremely short, quick-to-read fiction, the cover should convey a sense of speed, efficiency, and motion.
We’d like to see a design that is primarily based on an attractive blend of color and typography. Abstract symbolism that unites the concepts of writing, brevity, and speed might be OK.