First, When you have found the books that you want. Next you can take them to the self-service machines available at most libraries or to the Library Helpdesk where, on production of your card, Then, staff will issue the book to you. Self-issue machines will provide an itemised receipt of books issued; at Helpdesks the due date will be stamped on the date label inside the front of the book.
Finally, you can bring a book to read it elsewhere.