[1] He analyzes the "multiple paths of royalism, nationalism and Maurrassism of Action Française" during the first half of the 20th century.

[3] The author sheds light on the complexity of Maurras' attitude during the Second World War by juxtaposing his unwavering support for the Vichy regime until 1944 with "his hatred of Germany, refusing to receive Brasillach, to publish pro- -Germans or to announce "European" meetings".

[3] Eugen Weber relies on the analysis of the Parisian press but also of provincial newspapers such as La Nouvelle Guyenne and L'Eclair from Montpellier.

[3] It reveals in particular a correspondence of sixteen letters between Charles Maurras and the President of the Republic Raymond Poincaré between 1918 and 1925.

He uses the police reports kept at the National Archives and has special authorization to use the bundles of the period 1914-1939 unlike the historian Frank Tannenbaum who publishes a book on the same subject the same year.