In France, he is known for his theory on la France périphérique ("peripheral France").
His books state that many members of the political elite have lost contact to the lower classes, which are mainly in rural France, which he calls "peripheral France". He has used that theory to explain the rise of the National Front in France.
- Guilluy, Christophe (2013): Fractures françaises. Paris, Flammarion – Champs essais ISBN 978-2-0812-8961-1
- Guilluy, Christophe (2014): La France périphérique: Comment on a sacrifié les classes populaires, Paris, Flammarion ISBN 978-2-08-131257-9
- Guilluy, Christophe (2016): Le Crépuscule de la France d’en Haut. Paris, Flammarion, ISBN 978-2-0813-7534-5
- Short abstract & translation of the article in the French Wikipedia
- Caldwell, Christopher (2017). "The French, Coming Apart". City Journal. Manhattan Institute for Policy Research – commentary in English on Guilluy's work.
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