Recently longtime museum supporter Betty Quirk brought a group to visit the American Art Museum/National Portrait Gallery Library. Head Librarian Doug Litts set up a book display for the guests which included catalogues and several artists’ books.     Following the presentation, the group visited the National Portrait Gallery’s Time Covers the 1960s exhibition to <a href="http://blog.library.si.edu/2015/01/tour-for-quirk-endowment/#more-'" class="more-link">more »</a>