How many books are in the Chronicles of Narnia series?

There are seven books in The Chronicles of Narnia series because author C.S. Lewis planned and wrote the series with that number in mind. Each book corresponds to a different adventure in the enchanting land of Narnia, following the lives of various characters, including humans, talking animals, and mythical creatures. These books were written to be enjoyed individually or as part of a wider narrative, with each installment offering its own unique story and message, creating a rich and diverse fantasy world for readers to explore.