As man is becoming a machine due to the glamour of materialism and is being compelled to lead an unhealthy and tense life, the world is getting attracted towards yoga for attaining peaceful, healthy and tension-free life. In practical life, husband-wife, father-son, brothers-sisters are all external agents. In contrast, the body, the mind, intellect, ego, etc., are all internal agents which are closer to life. In a conflict, it is the internal agent, which comes out victorious. Keeping these internal agents under one's control is called 'Yoga'. For physical and mental health, Yoga is necessary. Hence, this book has been specially prepared for kids and students by and large. Yogasanas are introduced, their meaning, their effects on mind and body, the time required to perform each yoga and its advantages are explained in a very simple language. The pictures given are a speciality of this book, as they clearly express what the writer wants to say. We are sure that this book will contribute a great deal in keeping our young readers healthy and happy.