In the last two decades, digital technologies have made it possible for anyone with a computer and an Internet connection to rapidly and inexpensively self-publish a book. Once a stigmatized niche activity, self-publishing has grown explosively. Hobbyists and professionals alike have produced millions of books, circulating them through e-readers and the web. What does this new flood of books mean for publishing, authors, and readers? Some lament the rise of self-publishing because it tramples the gates and gatekeepers who once reserved publication for those who met professional standards....