The Odaimoku, which literally means "the title" is used in Japanese Buddhism to refer to the repeated recitation of a mantra.
The Odaimoku of Namu Myoho Renge Kyo is derived from the Lotus Sutra, the essential mantra of Nichiren Shu.
In this book is also explained the meaning of each single word composing the Odaimoku, so that one might have a deeper understanding of Namu Myoho Renge Kyo and its implications on one's life and enlightenment.