Karen Karter is a fitness expert and author. Her books have sold over 100,000 copies. She has been featured in major newspapers in the country such as The New York Times, The Miami Herald, and The Dallas Morning News. She was Self magazine's core strength expert for their Self Challenge 2004 where her book, The Core Strength Workout, was featured. During her twenty-year career she has influenced the fitness lives of thousands of students. Currently, she teaches the methods of Joseph Pilates.