Le monde celtique (The Celtic world), by Patrick Galliou.
Guerre et armement chez les Gaulois (War and armament among the Gauls), by Jean-Louis Brunaux.
Les Gaulois en guerre (The Gauls in war), by Alain Deyber.
Le guerrier gaulois (The Gallic warrior), by Franck Mathieu.
Le guerrier celte (The Celtic warrior), by Stephen Allen.
Dictionnaire de la langue gauloise (Gallic Dictionnary), by Xavier Delamarre.
La langue gauloise (The Gaulish language), by Pierre-Yves Lambert.
La civilisation celtique (The Celtic civilization), by C.-J. Guyonvarc'h.
Les Gaulois (The Gauls), by Jean-Louis Brunaux.
Le commerce dans l'antiquité: La Gaule et ses voisins (The trade in the antiquity: The Gaul and her neighbours), by Barry Cunliffe.
L'armement celtique en Europe, chronologie de son évolution (The Celtic armament in Europa, chronology of his evolution), by André Rapin.
Armes et techniques de combat des Gaulois au 1er siècle av J.-C (Weapons and martial technique of the Gauls at the first century BC), by Jean-Louis Brethenoux.
César et la Gaule (Caesar and the Gaul), by Christian Goudineau.
L'art des Celtes (The Celtic art), by the museum of Berne.
Les druides, des philosophes chez les barbares (The Druids, philosophs among the barbarians), by Jean-Louis Brunaux
Dossier Vercingétorix (Vercingetorix folder/file), by Christian Goudineau.
And the two historical comic books giving a good synthesis of the historian work in France:
Le casque d'Agris 1: Le sanctuaire interdit (The helmet of Agris: The forbidden sanctuary), with Christian Goudineau and several historians and with Jean-Claude Le Blay as Archeozoologist.
Le casque d'Agris 2: L'or des Sénons (The helmet of Agris: The Gold of the Senones), with Jean-Louis Brunaux as mainly historian.