We are again going through a period of expansion in biographical literature. There is an ever greater number of publications, demonstrating the libido biographica of the reading public and also showing the interest of authors for a genre that is often treated with a great deal of care and rigor. This is not the first time in the history of letters, and each of us can find in his library a quantity of ancient, classic or modern works proving the constancy of this production. However, the contemporary phenomenon takes on a different meaning. The appetite for the biographical seems to be directly linked to its value as testimony. We are living in an era of distrust with regard to rules and codes. Every individual is called on to organize his conduct and invent his existence, from which comes, it seems, this need for an example that also expresses a taste for history and a need for more truth than entertainment from the author of biographies.