Study of Ayurveda is eternal. One can try to understand Ayurveda in one's life. It seems very difficult. Hence it is beneficial to study Ayurveda everyday, every life. Whatever I understood about Ayurveda, during last 44 years, I tried to write it. In this book salient features about principles of Ayurveda are considered as described in Ayurvedic Treaties and recent research references are given for benefit of interested persons.