This highly important book translates and clearly explains foundational Pali terms that are vital to a complete understanding of Buddhist philosophy and religion. It is an accurate, detailed, and authentic Buddhist dictionary of doctrinal terms from the Pali Canon and its Commentaries. It is of value for understanding the early Buddhist tradition and the Theravada tradition which grew out of it, but does not cover the later Buddhist traditions. The author, Nyanatiloka, was a German monk who compiled the book while interned in India by the British during World War II. Since then, it has been enlarged and revised-this being the third revised and enlarged edition. The main entries are listed under the Pali terms, and the English expressions commonly used are explained and included. Original Pali words are often used in Buddhist texts and remain untranslated, since writers often did not know their accurate meanings. Therefore, this book is widely known as an essential work for all serious students of Buddhism.