Heartwood of the Bodhi Tree: The Buddha’s Teaching on Voidness by Buddhadāsa Bhikkhu.

Three talks (“The Heart of Buddhism,” “All About Voidness,” and “Practicing With Voidness”) given to a Dhamma study group at Siriraj Hospital, Bangkok, on 17th December 1961 , 7th and 21st January 1962.

Translated from the Thai (แก่นพุทธศาสน์) by Dhammavicayo. Revised and edited by Santikaro Bhikkhu. Thailand edition of the title by Wisdom Publications. Reprint. Silkworm, Chiang Mai, [201x]. xxvi/174 p. ISBN: 978-974-9575-57-4  [INFO]