I love Elliot Bay! The moment you walk in the door you are greeted with the warm smell of books and the cozy feeling of floor to ceiling books shelved on wood cases, and the sound of the creaky wood floors. They have an amazing selection and the staff here is really passionate about their books and helpful too.
The downstairs cafe is a seperate business (so it stands to reason that they don't let you bring the books in here before purchasing!) It has a nice selection of lunchy foods and coffee and is really a great place to spend a rainy afternoon with a new book.