Includes letters from friends, family members, writers, teachers, students, editors, publishers, and readers of Chappell's works. Letters are arranged chronologically with undated letters at the end. Some letters include short writings as attachments. Longer writings such as drafts of entire books, complete issues of serials, and so on appear in the Writings by Others Series. Chappell frequently uses the backs of letters, envelopes, or attachments to write drafts of various material: responses to the letter at hand, poems, story fragments, translations, and autobiographical statements. A chronological list of these items appears following the box list for this subseries.