The following is an excerpt from the third chapter of Collecting, Curating, And Researching Writers' Libraries, A Handbook, edited by Richard Oram and Joseph Nicholson (Rowman & Littlefield, 2014). This chapter deals with the role of the bookseller; other chapters deal with the roles of librarians, curators, and researchers, with accounts of some libraries, a list of authors' libraries preserved in public and private hands, and interviews conducted by Oram and MacDonnell with five well-known authors who describe candidly just how they organize and use their books. In this chapter MacDonnell outlines the five-stage process a bookseller employs when assessing a writer's library: defining what is in the library; assessing its salability; providing valuation; preparing the library for sale; and finally, negotiating its sale. The full article,... [more Writers’ Libraries: The Bookseller’s Perspective]