Swami Kripalvananda, also known as Swami Kripalu, was a renowned Kriya Yoga master who dedicated his life to spreading the teachings of this ancient spiritual practice. Throughout his lifetime, he wrote many books and articles that are available to the public, providing valuable insights and guidance on the path of Kriya Yoga.

One of the most well-known and influential books by Swami Kripalvananda is "The Science of Yoga," which is a comprehensive guide to the theory and practice of Kriya Yoga. This book covers various aspects of yoga, including the philosophy, techniques, and benefits of Kriya Yoga. It is a must-read for anyone interested in delving deeper into the practice.

Another popular book by Swami Kripalvananda is "Kundalini: The Evolutionary Energy in Man," which explores the concept of Kundalini energy and its role in spiritual evolution. This book provides a detailed understanding of the subtle energy system within the human body and how it can be awakened through the practice of Kriya Yoga.

In addition to these books, Swami Kripalvananda also wrote a series of articles for the Kripalu Yoga Ashram's magazine, "Kripalu Yoga Journal." These articles cover a wide range of topics related to yoga, including the practice of Kriya Yoga, meditation, and spiritual growth.

One of the most significant contributions of Swami Kripalvananda to the world of Kriya Yoga is the Kripalu Yoga lineage. He founded the Kripalu Yoga Ashram in Pennsylvania, which continues to be a hub for Kriya Yoga practitioners and teachers. Swami Kripalvananda also initiated many disciples into the Kriya Yoga tradition, who have gone on to spread the teachings of Kriya Yoga around the world.

Apart from books and articles, there are also recordings of Swami Kripalvananda's lectures and talks available to the public. These recordings offer a glimpse into his profound wisdom and teachings, providing inspiration and guidance for spiritual seekers.

In conclusion, Swami Kripalvananda's books and writings are a valuable resource for anyone interested in the practice of Kriya Yoga. His teachings continue to inspire and guide countless individuals on their spiritual journey, and his legacy lives on through the Kripalu Yoga tradition.