The Smithsonian National Air and Space Museum draws more visitors than any other museum in the world-90,000 a day in the summertime-and the highlight of summer 2007 at the NASM will be Fly Now, the exhibit of air travel posters featured in this unique companion volume which combines arresting, colorful art, rare archival material, and a unique approach to aeronautical history.The posters-most of them never before published-feature barnstormers, gliders,...