The series is comprised of manuscripts, typed scripts, notes, promotional material, reviews, playbills, programs, photographs, correspondence, contracts, and audiovisual recordings. The most substantive portion of the material documents Glines's involvement in theatrical productions (as actor, playwright, and producer) from his high school years through adulthood. To a lesser extent the material documents Glines's involvement with children's television including his work on Captain Kangaroo and Sesame Street.