Right Mindfulness: Memory & Ardency on the Buddhist Path. For the past several decades, a growing flood of books, articles, and teachings has advanced theories about the practice of mindfulness which are highly questionable and—for anyone hoping to realize the end of suffering—seriously misleading. The main aim of this book is to show that the practice of mindfulness is most fruitful when informed by the Buddha’s own definition of right mindfulness and his explanations of its role on the path.
Ṭhānissaro Bhikkhu, also known as Ajaan Geoff (born Geoffrey DeGraff, 1949), is an American Theravada Buddhist monk of the Dhammayut Order (Dhammayutika Nikaya), Thai forest kammatthana tradition. He is currently the abbot of Metta Forest Monastery in San Diego County. Ṭhānissaro Bhikkhu is a translator of the Pāli Canon as well as more modern Buddhist works and the author of many articles and books on Dhamma.
“Sāriputta, suppose that I had four disciples with a 100-year life span, living for 100 years... would ask me one question after another on the four establishings of mindfulness... those four disciples of mine, with their 100-year life span, living for 100 years, would die with the passing of 100 years."
I think it's clear Venerable Thanissaro Bhikkhu's understanding of Right Mindfulness in accordance to the true Dhamma is levels ahead of most modern mindfulness teachers... For a short book, it is rather dense but mastery over its content will prove useful and necessary - whether directly by reading this book, or indirectly by finding out for oneself in their practice (which could take many lifetimes, but luckily we have the Buddha's guidance) - on anyone's journey on the path.