author
d. 1940
Known for brisk, practical books on self-mastery and everyday judgment, this elusive early 20th-century writer was published as a guide to clearer thinking and steadier living. The name itself has long carried a bit of mystery, which only adds to the curiosity around the work.

by Yoritomo-Tashi
Yoritomo-Tashi is the name attached to a group of early 20th-century self-help and philosophy titles, including Common Sense, How to Exercise It. Public-domain editions credit the author simply as "Yoritomo-Tashi" and record a death year of 1940, but firmly documented biographical details are hard to pin down.
What can be confirmed is the character of the writing: practical, moral, and focused on mental discipline, judgment, influence, and personal conduct. English editions of the books were translated and circulated widely enough to remain in libraries and public-domain archives today.
Because reliable biographical sources are scarce, many personal details about the author remain uncertain. In short, the books are much easier to verify than the life behind the name, and that air of uncertainty has become part of the author's lasting appeal.