YA may have blown up over the past decade, but it used to be a small section of bookstores. In the early nineties, it consisted mostly of "teen thrillers," which mostly featured dark mysteries and serial killers, although there was some supernatural fare as well. The authors of those days were ahead of their time and built an audience in teenagers, and paved the way for the YA that is beloved by so many today. Some pioneers in teen wrote books based on ideas formed by committee. Melinda Metz's wildly popular Roswell High was such a series, dreamt up by a publishing company. This method proved fruitful in some cases, and for Metz at least, launched a career that continues to this day. YA Pioneers Melinda Metz began her career in the book industry as an editor. After seven years, she made her leap to writing, penning an adaptation of a Goosebumps television episode in 1997 ( Attack of the Mutant ). Soon after, a publisher at the time, Pocket Books, was searc