Otis Prather's University of Kentucky (K-Book), 1924-1925, includes handwritten daily entries detailing Prather's activities, classes, movies he saw, the weather, and places he visited as a freshman student at the University of Kentucky. Prather's K-Book also includes a hand-written class schedule and pasted-in photographs and clippings.

The K-Book was sponsored by the YMCA and YWCA and was distributed to new University of Kentucky students to help them become acquainted with school life and the campus. A small, pocket-sized bound book, it contained the academic calendar, university history information, freshman rules, school traditions, athletic schedules, school songs, and information about student clubs and government. In the 1924-1925 edition, the last 67 pages of the K-Book included one blank line per day for students to use as a diary, specifically as a prompt to "write mother about it."