Elfortum inc is trying to create an app for selling and buying books. The app will include search engine for searching ISBN numbers on our database, people will be able to upload their book adds and there would be a communication system between the customers our app will act as buy and sell app where people will upload their books and sell them or buy them. App might require money transfer option so expertise in that section will also be needed. we are not looking for basic UI this will be different and more smoother as medium to high end apps . Contact us so we can explain further about the concept further.