We have 3000 titles in stock in our Kensington, MD bookstore, all available to both our local customers and ready to ship throughout the United States. We try to keep stock levels updated, but information is not 100% accurate. To be sure all items of your order are in stock, please text or call 240-383-9163. If you place and order and we can't find it in the store, we will ship what we have to you right away (usually within 48 hours) and order the missing item(s), which we will then ship to you as soon as they arrive in stock at no additional shipping charge. This generally takes about 4 weeks.