New York’s East Village, St. Mark’s Bookshop has been selling books to students, academics, artists and other discerning readers ever since 1977. Completed by Clouds Architecture Office. The brief called for a flexible space. As a result, the architects wrapped the interior of the store with a continuous, slightly concave bookshelf that literally embraces the space. In the middle, the shelf bulges outwards, concealing a small office for the staff within.