About Chico Xavier
Francisco Cândido Xavier, born Francisco de Paula Cândido and commonly known as Chico Xavier, was a Brazilian philanthropist and spiritist medium. Over a period of 60 years, he wrote over 490 books and several thousand letters claiming to use a process known as "psychography". Books based on old letters and manuscripts were published posthumously, bringing the total number of books to 496.
Biography source:
Wikipedia