Author Chris Fox returned again, this time to talk about his 21 Day Book Challenge. He decided to write to market in Science Fiction, nutted out the plot, wrote the book, had it edited and published all within 21 days. Not only that but he took it one step further and decided to launch to market as well (marketing book coming soon) with the lofty goal of having the book stay under 10,000 in the paid rankings for 30 days. As of writing this post it is currently sitting at #677! Not only that but he decided to document the whole challenge via vlog, explaining what he did and his reasons for doing so.