Seventeen magazine first appeared on newsstands in September, 1944, and it forever changed the media and consumer market for teenage girls. It was not the first publication to notice teenage girls, but it was the first that successfully reached a large teenage audience by devoting an entire magazine to them. Physically larger than today's magazine, Seventeen was initially 10 3/8-by-13 1/8 inches, printed on quality, thirty-five pound paper. The reader was first attracted to the colorful cover that promised "Young fashions and beauty, movies and music, ideas and people," as well as the section headings dividing the entire magazine into well-defined categories; "What You Wear," "How You Look and Feel," "Getting Along in the World," "Your Mind," and "Having Fun." Inside its covers, Seventeen offered a world of advertising, shopping, responsibility, and advice in the voice of a big sister or aunt, older and experienced, yet friendly and concerned. From the...