The series is comprised of letters that fall into the following categories: personal letters from friends and acquaintances who wrote to Lindbergh fewer than five times; routine business correspondence; autograph requests; letters from the general public commenting on Lindbergh's activities; and requests that Lindbergh give speeches, serve on committees, and write articles on behalf of various religious, cultural, philanthropic, and political causes. Much of the correspondence in the series is routine. Viewed in its entirety, however, it reveals two aspects of Lindbergh's life. First, the close scrutiny to which her life, both public and private, was subjected to an intensely curious public, and second, her great influence and popularity as a writer with its corresponding demands on her time.