Dr. Norman W. Walker is acknowledged as one of the world's leading naturalists of the early 20th century. A raw food and vegan pioneer, Walker was an early advocate of the therapeutic value of fresh vegetable juices and operated one of the first juice bars in Long Beach, California in the 1920's and '30's. He devoted over 70 years to researching man's ability to live a longer, healthier life and was his own example of achieving vibrant health through proper thought, diet and body care. In later life he had a health spa in Sedona, Arizona and wrote extensively on nutrition and healthy living.