The Da Vinci Code follows Robert Langdon, a Harvard professor of symbology, who is pulled into a murder investigation at the Louvre after the museum's curator is found dead, surrounded by cryptic signs. Teaming up with Sophie Neveu, a police cryptologist with a personal stake in the case, Langdon flees across Paris and beyond, decoding riddles tied to Leonardo's paintings, secret societies, and a contested chapter of Christian history, while a shadowy pursuer and the police close in.
Brown's method is simple and effective: very short chapters, constant cliffhangers, and frequent pauses where a character explains a piece of history, an anagram, or a symbol. The book reads like a guided tour delivered at a sprint. Much of its appeal lies in the feeling of being let in on hidden meanings in famous art and architecture, even when the claims are speculative or flatly contested by historians.
The prose is functional rather than elegant, and characters exist mainly to move the puzzle forward. But as a page-turner it does exactly what it promises. Expect to read it quickly, argue about its historical claims afterward, and perhaps go looking at Leonardo's Last Supper with new eyes. It is the second Langdon novel after Angels & Demons, but it stands entirely on its own.