As Columbia Broadcasting Director of Education, Lyman Bryson's name carries beyond that as author of Science and Freedom. This is a series of broadcasts edited into book form, presenting radio- as a public problem- to its public. The discussions range over questions of the masses vs minority interest; network and station relationships; sponsors, commercials (restrictions imposed); types of programs from entertainment to documentary; questions of public interest; and so on. This is chiefly an explanation of radio today in practice- considerations involved in program presentation- criticisms levelled against radio. Largely limited to those in the field.