This letterbook covers the period January 1908-May 1916, with one additional item from 1907. It consists of correspondence and memoranda pasted or pinned into the book, as well as numerous loose items. Included are incoming letters addressed to Miller and Edison; copies of correspondence sent by Miller on Edison's behalf; handwritten memoranda from Miller to Edison; and handwritten instructions from Edison to Miller. The items from 1908 illustrate Miller's assumption of secretarial duties after the suicide of John F. Randolph. Among the correspondents are longtime Edison associates Sigmund Bergmann, Frank L. Dyer, Edward H. Johnson, and Josiah Reiff. There are also letters to and from Thomas A. Edison, Jr., William Leslie Edison, and other family members, including Nellie Edison Poyer and Charles F. Stilwell. The spine is stamped "Letters." The book contains 498 pages and an index; many pages are blank. Approximately 80 percent of the documents have been selected.