How do you say setting of book in french?

The setting of a book in French can be expressed in several ways, depending on the context and level of formality:

Formal:

* Le cadre (the setting)

* Le contexte (the context)

* L'environnement (the environment)

* Le décor (the scenery, but less common for a whole book)

Informal:

* Le lieu (the place)

* L'époque (the time period)

* L'atmosphère (the atmosphere)

Example sentences:

* Le cadre du roman est la France du XVIIIe siècle. (The setting of the novel is 18th-century France.)

* L'environnement du récit est une ville futuriste. (The environment of the story is a futuristic city.)

* L'atmosphère du livre est sombre et mystérieuse. (The atmosphere of the book is dark and mysterious.)

You can also use a verb to describe the setting:

* Le roman se déroule à Paris. (The novel takes place in Paris.)

* L'histoire se passe dans un monde imaginaire. (The story takes place in an imaginary world.)

Remember to choose the word that best fits the context and your desired level of formality.