The Yoga Sutras Workbook Part I is a wonderful introduction to the traditional practices of yoga, with many explanations about how to read and interpret the Yoga Sutras of Patanjali. Scott Roos fills in the details from the oral tradition so that these sutras can not only be understood intellectually but also be put into practice. The pages within contain exercises that can be done on a weekly basis, and a practitioner can continue practicing as long as desired.