The collection consists of three series: Talks, Retreats, and Pendle Hill Courses; Topical Files; and Additions. The Talks, Retreats, and Pendle Hill Courses include talks given by Taber, notes on talks, and other material related to these works.  They reflect the diverse topics Taber covered in his professional and personal work. They are arranged within the series in the order in which they arrived at Earlham. The Topical Files are arranged in alphabetical order and cover a wide spectrum of Taber’s professional interests. The materials include correspondence, notes, articles and talks written by Taber, and articles written by others on Quakerism that sometimes includes notes by Taber.  Topics range from spiritual issues, history, ministry, education, marriage, and Quaker meetings. The focus is exclusively on Quakerism. The Additions arrived in 2008 and 2010, and were kept together. Generally, the 2008 additions are an extension to the topical files. The first subseries in the additions is arranged alphabetically, and the second subseries is arranged chronologically. The additions primarily, but not exclusively, focus on Quakerism. The 2010 additions are Talks, etc., and are found in box 19.