1. As a user, I want to add my purchases into the cart, so I can collect my purchases in one space.
2. As a user, I want to review my cart, so I can make adjustmentadjustments prior to checkout.
3. As a user, I want to search by name or author for the books I want to purchase it.
4. As a user, I want to review my order so I can see what I've purchased in the past.
5. As a user, I want to be able to choose the payment way; either online or payment when receiving the purchases.
6. As a user, I want to be able to choose my shipping company.
7. As a user, I want to be able to choose to many copies, so I can take two or more copycopies for the same book.

8. As a user, I want to see the list of book categories.