Mrs. J. Roy is a French author associated with popular esoteric literature and practical works published in the early 20th century. Her name mainly appears in books dedicated to domestic secrets, traditional remedies, old recipes, as well as popular practices related to luck, protection, and daily life. Her works continue the tradition of old practical manuals combining household knowledge, popular traditions, and recipes passed down in the French countryside. This literature, very widespread at the end of the 19th century and the beginning of the 20th century, was widely circulated among an audience seeking simple solutions for the home, health, protection, or everyday minor problems.















