This book explains the two basic types of fasting: water fasting and juice. It also explains the basic lengths of fasting: seven to ten day fasts and longer 14, 21 to 28 day fasts. It goes over various techniques and methods of fasting and various professional opinions on fasting. Hopefully this book will give people some solid knowledge on the topic and to help people develop their discipline on fasting and to develop their own Personal Fasting Program. Fasting is a main discipline in most religions and it is also a penitential or purification activity in most Christian churches, especially in the Catholic and Orthodox Church. Fasting means or implies purification, it is a major means of purification for the body and for the soul. Purification is a key term in the bible especially the Old Testament.