Barbara and Kevin Kunz are internationally recognized authorities in reflexology as well as best-selling authors of 19 books about reflexology and the newest edition about prolonged sitting. The Kunzes published in 22 languages with 60 foreign editions. The Kunzes have practiced, taught, and researched reflexology for close to 40 years. Areas of study for their Reflexology Research Project include documenting reflexology techniques and ideas; how reflexology works in the nervous system; a data base of research studies in reflexology (500 and counting); the structure and function of the foot as well as the activities of standing and walking; and reflexology paths. These topics and more have been explored and experienced, described and written about in books for self reflexology users, family reflexologists, professional reflexologists and health professionals.