This bookstore is often crowded and very small, but it is the best you will find in Washington DC when you want to shop for used books. While its size is unfortunate the selection can be quite good. Many professors, politicians, and policy wonks dump their extras here. Sometimes when you are browsing the politics section you will run across a book from the Reagan area that has a personal note from Reagan inside thanking the former owner for their service. There are sections for many different topics though this store seems to excel in the social sciences, humanities, and fiction. They do have a rare books section for the serious collector. The pricing here is about average for a used bookstore.