He chooses his collaborators, dealing with suppliers in the market as well as financial management. In an obituary published in 1862, Nadar the credits of "extraordinary lucidity in business" coupled with "inexhaustible fertility of invention and means". Employer of his artist friends, it defines the objectives with them, suggest topics, coordinating text and lithography. He does not hesitate to ask for changes to avoid censorship. To ensure editorial consistency, writing is reduced to a small team of highly dedicated journalists (in February 1834, they are seven Philipon included).