Debra Anne Ross Lawrence is the author of six books of the Master Math series: Basic Math and Pre-Algebra, Algebra, Pre-Calculus, Calculus, Trigonometry, and Geometry. She earned a double Bachelor of Arts degree in biology and chemistry with honors from the University of California at Santa Cruz and a Master of Science degree in chemical engineering from Stanford University.

Her research experience encompasses investigating the photo-synthetic light reactions using a dye laser, studying the eye lens of diabetic patients, creating a computer simulation program of physiological responses to sensory and chemical disturbances, genetically engineering bacteria cells for over-expression of a protein, and designing and fabricating biological reactors for in-vivo study of microbial metabolism using nuclear magnetic resonance spectroscopy.

Debra was a member of a small team of scientists and engineers who developed and brought to market the first commercial biosensor system. She managed an engineering group responsible for scale-up of combinatorial synthesis for pharmaceutical development.

She also managed intellectual property for a scientific research and development company. Debra’s work has been published in scientific journals and/or patented.

Debra is also the author of The 3:00 PM Secret: Live Slim and Strong Live Your Dreams and The 3:00 PM Secret 10-Day Dream Diet. She is the coauthor with her husband, David A. Lawrence, of Arrows Through Time: A Time Travel Tale of Adventure, Courage, and Faith. Debra is President of GlacierDog Publishing and Founder of GlacierDog.com. When Debra is not engaged in all-season mountaineering near her Alaska home, she is endeavoring to understand the incomprehensible workings of the universe.