Who were the 35 actors that performed with stars Bud Abbott and Lou Costello in radio's The Abbott and Costello Show? Do scripts survive for the old Burns and Allen shows or the children's crime fighter series The Green Hornet? Serious researchers and curious browsers interested in Golden Age radio will find a wealth of information in this reference collection. Most are from the 1930s, 1940s and 1950s, though subsequent decades are included for long-running shows. Crime series, whodunits, romances, situation comedies, variety shows, soap operas, quiz show series and others are included. Casual browsers will find tidbits on the radio careers of notables from other media (Humphrey Bogart, Ginger Rogers), mention of adaptations by famous authors (Jack London, Ray Bradbury), curious episode titles ("The Gorilla That Always Said Yeh-ah") and series titles (Whispering Streets), and interesting sponsors (Insect-O-Blitz).

The first section is an alphabetical list of T.O. Library's significant radio script collections, with notes on their content and format. The second section is the guide to series scripts by program title. Entries include title and basic information, including collection(s) in which they are found; producers, directors, writers, musicians and regular cast; sponsors; and holdings by date, episode number and title. Increasing the book's usefulness for researchers are indexes by name, program and sponsor.