Jack Halpern is a renowned expert in East Asian linguistics and author of Kodansha's best-selling written Japanese resource The Kodansha Kanji Learner's Dictionary. He has been working for many years on this ground-breaking new reference work which enables intermediate and advanced learners to explore the nuances of closely related characters by studying them together, rather than as isolated units.
Editor-in-Chief JACK HALPERN is the CEO of The CJK Dictionary Institute (CJKI) in Japan. The institute is one of the world's prime sources for CJK (Chinese, Japanese, and Korean) dictionaries, and specializes in compiling comprehensive CJK and Arabic lexical databases. A lexicographer by profession, Halpern has spent more than forty years compiling dictionaries. He is the editor-in-chief of The Kodansha Kanji Usage Guide, The Kodansha Kanji Dictionary, and the best-selling Kodansha Kanji Learner's Dictionary: Revised and Expanded. Halpern is also an avid polyglot, having studied 15 languages (ten of which he speaks fluently).