Book appraisal talk schedule: "What makes books valuable, and identifying first editions" (11 .a.m-noon Fri-Sat), "Appraising major literary works; Twain, Hemingway, Faulkner, and others" (Sat 1-2 p.m.), "Appraising history-changing books; Darwin, Galileo, Newton, Luther's Bible, the Saint James Bible, Freud, Einstein, and more" (Sat 3-4 p.m.), "Appraising 'art' books; fine bindings, prints, maps, and limited edition books containing original artwork and other forms of illustration before photography." (Sat 5-6 p.m.). Book sale Fri.-Sat. 9 a.m.-6 p.m. Proceeds benefit Pullman's roof repair fund.