In this project, there are many functionalities like User Registration, User Login, Add to Cart, Checkout any many other. In this web application using database I restricted can’t create different username with same email id if he/she is being already registered to this Online Book Store. Session and Cookies are implemented and accessed as per the requirement. Guest users are also invited but if they want to buy then they have to register after checkout is done. As there is a double verification whether user is logged in or not.