C. Harry (Cyrus Harry) Brooks

C. Harry Brooks, also listed as Cyrus Harry Brooks, was born in 1890 and is best known today for The Practice of Autosuggestion (1922). That book introduced and explained the methods associated with Émile Coué for a broad English-speaking audience, and it remains the work most closely linked with his name.

Sources available online also describe Brooks as a literary agent and translator. His known books include Christianity and Autosuggestion (1923), written with Ernest Charles, and Your Character From Your Handwriting (1930), which suggests a wider interest in self-improvement, belief, and popular psychology.

Some library and bookseller records give his lifespan as 1890–1951, but the strongest easily confirmed details center on his publications rather than on his personal life. Even so, his work offers a clear snapshot of a period when autosuggestion and mind-training were finding a large and curious readership.