But you can fight back: I knew there was a danger of people stealing your E-book--customers talk about it all of the time--but I thought the phenomenon was limited to people passing a PDF to their friends. However, it turns out that people are posting books on file-sharing sites, including books lifted from Kindle. Meredith Greene, a book reviewer and self-published author, details the problem and suggests both a legal and a marketing response in the Sacramento Book Review. Check it out. The Publishing Pro.