- Author: Maharishi Mahesh Yogi
- Language: French
- Year: 1981
- Author: Maharishi Mahesh Yogi
- Language: French
- Year: 1981
- Author: Maharishi Mahesh Yogi
- Language: English
- Year: 2019
- Author: Maharishi Mahesh Yogi
- Language: English
- Year: 2001
- Author: Maharishi Mahesh Yogi
- Language: English
- Year: 1968
- Author: Maharishi Mahesh Yogi., Shumsky Susan G
- Language: English
- Year: 2018