Treatise on religious fasting, with many graphic illustrations and diagrams and 100 reasons why we should fast.

This book, which provided detailed information on the methods and benefits of fasting, was an immediate success and brought the author considerable fame. According to him, all of the major evangelists began following his fasting regime and miracles erupted everywhere. Many observers of the early revival years agreed, as one said, "Every one of these men down through the years followed Franklin Hall's method of fasting."