In 1968, the Académie de philatélie published the first volume (in two volumes) of its "Encyclopédie des timbres de France", covering the period 1849-1853. These two large volumes, which are now difficult to obtain, have improved the knowledge of the stamp collectors.
Since this publication, the Encyclopédie continues in the form of books (22 x 27 cm format, then "A4" since 2003) centered on a subject.
Here is a "Bibliographic Sheet" in ten pages in .pdf format (and in french!) with the summaries of all the works published by the Academy of Philately.