George Trombley is a professional Japanese interpreter who over the past 16 years has interpreted for corporations such as Microsoft, IBM, NTT DoCoMo, Lucent Technologies, and in countries throughout North America, Europe, Asia and the Middle East. In addition to Japanese, George has also co-authored the Korean From Zero! series and consulted on Chinese, French, and Spanish language books. Yukari Takenaka moved from Himeji, Japan to the United States, and taught Japanese for over 10 years while co-authoring custom lessons for students that eventually became the basis of the Japanese From Zero! book series. Prior to becoming an author, Yukari worked in Japan as a professional in the medical industry. She continues to write Japanese related materials to support her passion for teaching Japanese.