Amazon. com has stirred the hornet's nest by deleting two books from Kindle e-book readers.

The concerned customers blamed Amazon for not informing them before deleting their copious notes.

Justin D. Gawronski, a student sued Amazon in federal court, Seattle, saying it destroyed his homework on George Orwell's 1984.

The lawsuit said, "Mr. Gawronski now needs to recreate all of his studies."

Another boy, Antoine J. Bruguier from California also complained that Amazon deleted his book from Kindle with out notifying him.

Both petitioners argued that Amazon does not possess authority to remove any digital content from its customers' Kindles with out their permission.

It may be noted here that earlier this month, Amazon had deleted some digital content, saying it was added by a third-party, who was not permitted to sell its material.

The Free Software Foundation informed that it would appeal against Amazon asking it to quit its control on e-books' customers' content on Kindles.

The lawsuit said Amazon would carry on committing such acts unless it is restricted.