To convey his conviction that "the Japanese language is not vague," Rubin has dared to explain how some of the most challenging Japanese grammatical forms work in terms of everyday English. Reached recently at a recuperative center in the hills north of Kyoto, Rubin declared, "I'm still pretty sure that Japanese is not vague. Or at least, it's not as vague as it used to be. Probably."

The notorious "subjectless sentence" of Japanese comes under close scrutiny in Part One. A sentence can't be a sentence without a subject, so even in cases where the subject seems to be lost or hiding, the author provides the tools to help you find it. Some attention is paid as well to the rest of the sentence, known technically to grammarians as "the rest of the sentence."

Part Two tackles a number of expressions that have baffled students of Japanese over the decades, and concludes with Rubin's patented technique of analyzing upside-down Japanese sentences right-side up, which, he claims, is "far more restful" than the traditional way, inside-out.

"The scholar," according to the great Japanese novelist Soseki Natsume, is "one who specializes in making the comprehensible incomprehensible." Despite his best scholarly efforts, Rubin seems to have done just the opposite.