When Sesame Street first hit the public-television airwaves, in 1969, the target audience of kids aged three to five took to it immediately. But older kids, and even college kids, watched it too: If its goal had been to “sell” preschool kids on learning their alphabet and numbers, the way advertising sold goods to consumers,…

Street Gang: How We Got to Sesame Street Maps the History of a Revolutionary Kids’ TV Show That Still Has Plenty to Teach Us