Kyubyong Park works in the field of information technology, and has also been an editor at an educational publishing company focusing on language practice books for Koreans learning English. His expertise in the different learning techniques for these two languages results in an especially effective teaching approach. He is the author of several language books published in Korean, and is the coauthor of Korean for Beginners (Tuttle Publishing). He lives in Seoul.
Incredibly useful reference for anyone studying Korean. The index is perfect, making verbs easy to find in Hangul or by English meaning. Verb pages are visually very clean and easy to find the right conjugation, as well as including sample sentences and sentence structure at the bottom of the page. Verbs with the same spelling but different meanings are given separate pages for separate meanings. -- Goodreads