two reviews, selling at a trickle, but selling

Think Like a Teacher is selling at a trickle, but it is selling, probably because I keep coming back to the Instapundit open threads to flog my book. The book now has two reviews, including a short, somewhat flippant review from my in-office coworker, who had been homeschooled as a kid, and who hated the experience because, according to him, his parents really had no clue what they were doing. My book is aimed at exactly those sorts of parents, but of course, there's the Dunning-Kruger problem of being both incompetent and too dumb to realize you're incompetent, i.e., the parents who need the book most probably don't even realize they need it. I have gotten one or two purchases via Reddit, but Redditors in general seem stubbornly to stay away from the book for whatever reason. Oh, well; it is what it is.