Masahiro Tanimori is associate professor of Japanese education at Tottori University in Japan. He is the author of Handbook of Japanese Grammar (Tuttle, 1994) and vice editor of New Edition of General Japanese (Xinbian Zonghe Riyu, China Astronautic Publishing House, 2011), and is a member of the Society for Teaching Japanese as a Foreign Language. He lives in Awajo, Japan.
Eriko Sato is a lecturer of Japanese and Japanese linguistics and the director of the Pre-College Japanese Program and the Teacher Certification Program for Japanese at the State University of New York at Stony Brook. She authored Japanese for Dummies (Wiley, 2002), Contemporary Japanese: A Textbook for College Students (Tuttle, 2005), and Japanese Demystified (McGraw Hill, 2008) and co-authored My First Japanese Kanji Book (Tuttle, 2009). She lives in Stony Brook, New York.