This is a great idea because it works on 3 levels... associating you with the book, selling more books, and having an audience of readers going out and talking about the book.
Lo ngumbono omuhle ngoba usebenza emazingeni ama-3... ukukuhlanganisa nencwadi, ukuthengisa izincwadi eziningi, nokuba nezithameli zabafundi abaphumayo bakhulume ngencwadi leyo.