Lisi Harrison worked at MTV Networks in New York City for twelve years. She left her position as senior director of development in 2003 to write The Clique series which sold more than eight million copies and has been on the New York Times bestseller list for more than two hundred weeks, with ten titles hitting #1 and foreign rights sold in thirty-three countries. The Alphas was a #1 New York Times bestseller, and Monster High was an instant bestseller. Her latest YA series is the Pretenders and her first adult novel is The Dirty Book Club. Lisi lives in Laguna Beach, California.