Bhikkhu Anālayo has written a book that is to destined to become the classic commentary on mindfulness as preserved in the Theravada (School of the Elders) Tradition of Buddhism. Anālayo analyzes with incredible detail, but in clear and accessible English, the Maha Satipaṭṭhāna Sutta (The Great Discourse on the Four Foundations of Mindfulness).
For anyone serious about studying and practicing mindfulness this is a must read. The book is entitled, Satipatthana: The Direct Path to Realization: http://amzn.com/1899579540
Anālayo history as a monk began when he temporarily ordained in 1990 in Thailand, after a meditation retreat at Wat Suan Mokkh, the monastery established by Ajahn Buddhadasa. After two years as a monk, he disrobed and went back to Germany. In 1994 he went to Sri Lanka, where in 1995 he took Pabbajja again under Balangoda Ananda Maitreya Thero. He received his Upasampada in 2007 in the Sri Lankan Shwegyin Nikaya (belonging to the main Amarapura Nikaya), with Ven. Pemasiri Thera of Sumathipala Aranya as his Acariya. Bhikkhu Bodhi (see Bodhi's profile on this webpage) has been Ven. Anālayo's main teacher.