Denny Hatch's great article: "Book Pirates! Diary of an Amateur Web Sleuth" tells the story of the theft of his father's book, which was still under copyright - not plagiarized, stolen. Essentially this was made possible by the advances in Print On Demand (POD) technology.
As Denny says:
Print on demand represents the future of book publishing. Rather than the old-fashioned model where huge investments had to be made in warehouses filled with books stacked floor to ceiling and gathering dust, the new book warehouse is in a computer hard drive where books and their covers are stored electronically.POD means that anyone can take a published book and offer it for sale with horrible ease, as Denny says: "We hijack books. Catch us if you can."
Order a book and a computer somewhere tells a book printing machine to print one copy (or 10 copies or 100 copies) of that title. The efficiency of the new system is truly elegant.
If you've got books in print, or Out Of Print, and you hold the copyright, keep an eye on them. Some unscrupulous operators may just decide to snatch your hard work without so much as a "May I?"