A quick easy reference to pick up and reinforce key Japanese phrases Japanese is the fifth most studied language in the U.S., with over 40,000 college students enrolled in Japanese courses every year, and Japan ranks as the eighth most popular international destination for American travelers.Focusing on real-world language skills that people can put to use right away-from asking directions to talking numbers-this phras is a must for travelers and students. Eriko Sato, PhD, is a native Japanese speaker and Professor of Japanese at SUNY Stony Brook.