
author
d. 1940
A mysterious name in early self-help publishing, this author was long presented as a wise Japanese philosopher. Modern scholarship suggests the books were actually shaped by the French writer Berthe Blanchard, which makes the story behind them almost as interesting as the advice itself.

by Yoritomo-Tashi
Early English editions of books such as Common Sense, How to Exercise It, Influence, How to Exert It, and Timidity, How to Overcome It presented Yoritomo-Tashi as a Japanese thinker, often with notes credited to the pseudonymous editor B. Dangennes. Those books became part of the popular self-improvement tradition of the early 1900s and stayed in circulation for decades.
More recent research has questioned whether Yoritomo-Tashi was a real historical author at all. A scholarly study of the figure’s reception describes Yoritomo-Tashi as a supposed Japanese philosopher introduced through the editorial work of B. Dangennes, identified as a pseudonym of the French self-help writer Berthe Blanchard, who died in 1940.
So readers usually meet this name in two ways at once: as the credited voice behind concise advice on judgment, confidence, and personal influence, and as part of a fascinating literary puzzle from the history of popular psychology and self-help publishing.