Author and Reddit user Max Barry convinced his publisher to let the Reddit community help pick the cover for his book, Machine Man. As of this writing, cover design #5 lead with nearly 80 votes.
Check it out: “Here are some images. I would deeply love to hear what you think, because getting the cover right is really important, and I’ve been staring at designs so long I can’t remember what books are supposed to look like. And I trust your judgment. Or, at least, I’ve been around Reddit long enough to know there are more smart people here than lunatics.”
Follow this link to see all the potential cover images on a single page. Leave your cover votes in the comments thread at this link. You can also sample the book in this online serial version.