Prononced at the french royal academy of architecture between 1721 and 1728, the lessons of Antoine Desgodets constitute an important milestone in the constitution and the normalization of the architectural knowledge in the classical age. We are happy to make available to readers, amateurs and specialists this first critical edition of the four courses of Antoine Desgodets, based on the study of all the manuscript identified to date. This edition was done in XML-TEI.