A book fair is going at bangla academy premise. Besides somekind of new book you find there digital site where you can get some information of book. In fact you can buy books from your home. Just think that if you want to buy some books you have to go to market. You have to spend money, energy and of course you have to waste your time. But, if you bought it in digital system, you can save it all. So please try it by online. I think you can save a lot of think.