If you buy a book at the bookstore, you own it. You can take it home, scribble in the margins, put it on the shelf, lend it to a friend, or sell it at a garage sale. But is the same thing true for the eBooks or other digital goods you buy? Retailers and copyright holders argue that you don't own those purchases, you merely license them. That means your eBook vendor can delete the book from your device without warning or explanation - as Amazon deleted Orwell's 1984 from the Kindles of surprised readers.
"A well researched book about w/ an important theme"