C.S. Marks has often been described as a "Renaissance woman." The daughter of academic parents, she holds a Ph.D. in Biology and has spent the past two decades teaching Biology and Equine Science. She is currently a Full Professor at Saint Mary-of-the-Woods College in west central Indiana.

She began writing shortly after the untimely death of her father, who was a Professor of American Literature at Butler University. A gifted artist, she has produced illustrations and cover art for all three books. She plays and sings Celtic music and a few examples of her songwriting may be found within the pages of "Fire-heart." She enjoys archery, and makes hand-crafted longbows using primitive tools.

Horses are her passion, and she is an accomplished horsewoman, having competed in the sport of endurance racing for many years. One of only a handful of Americans to complete the prestigious "Tom Quilty" Australian national championship hundred-mile ride, she has described this moment as her "finest hour."

She has been happily married for nearly three decades. She and her husband, Jeff, share their home with ten dogs (predominantly Welsh Corgis) and five horses. They live deep in the forest, where there are miles and miles of trail riding to be had.