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Boing Boing reader Bary submitted, via the site's Submitterator feature, this report from 1936 on the state of radio penetration across the United States. Commissioned by CBS as a way for sales representatives to convince potential advertisers that they should invest more money in broadcast, "the book and pamphlet present ownership, listernership broken down by age, sex, income and other demographics," according to Bary.

A preliminary examination of this project indicated that in order to obtain a complete answer, it would probably be necessary to make a very extensive field survey, which would have meant delay and heavy expense. The Committee therefore decided that the interests of all parties concerned would be best served by making the best possible estimate, based on existing figures and on additional data that could be gathered in a reasonable length of time.

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