On his return to Europe he worked as a "Chef de Cuisine" in Spain and published his first book: “Gastronomía en tiempos de San Francisco Javier” (Gastronomy in the times of Saint Francis Xavier), ordered by Sociedad Cultural Baja Montaña/Mendi Behera, of Navarre, Spain. Subsequently, under the auspices of the Excelentísimo Ayuntamiento de Sos del Rey Católico, Zaragoza, Spain, he published a research book: “La Cocina Medieval en la Villa de Sos del Rey Católico” (Medieval Kitchen in the Villa of Sos del Rey Católico); this book was shortlisted (2nd) with regards to the “World Award Cookbook” –Gourmet Prize-, sponsored by Cointreau. Thereafter his interests wandered away again, and his research project of the Roma’s laws “La llama frente al huracán”, was published by Editorial AQUA, Zaragoza. This book, “The flame in front of the hurricane”, is more than a legal code; it is a code of ethics and conduct for Gipsy Patriarchs. In 2007 Editorial AQUA published “Con la Mirada de un dios cobarde” (Under the Sight of a Cowardly God) José Manuel wrote that the saga of a Roma Patriarch with Gipsy laws is compared to the law of Moses, present Judaism, Hinduism and Christian religions.