One of the most important things that affect the marketing of a book is the cover art. That’s what people see. It is supposed to catch the eye and make a person go, “hey, what’s this?” There are a lot of different schools of thought about what a cover should look like. Some people opt for extreme simplicity, like just a solid color with the title. There are artistic reasons for going with simplicity, and as long as it is an artistic reason that is driving it (and not a financial one) that is fine. It’s all art anyway, the novel and the cover. Other people go for a showy, eye-catching cover. In the realm of science fiction and fantasy books there have been some wonderful covers and cover artists over the years. The Hugo Awards started giving awards to artists in 1958. Prominent cover artists include Frank Frazetta, Kelly Freas, Boris Vallejo, Michael Whelan, and many others who are giants in their field, but whom the public may not know by name (though they probably know their...