Dan Brown is an American author best known for his thriller novels, which often feature the themes of cryptography, art, and conspiracy theories. His books have sold over 200 million copies and have been translated into 56 languages. His most famous works include The Da Vinci Code, Angels & Demons, and Inferno. Brown's novels are often set in historical settings and feature protagonists who are experts in their respective fields. His protagonists often find themselves in the middle of a mystery or conspiracy, and must use their knowledge and skills to unravel the secrets and save the day. Brown's writing style is fast-paced and suspenseful, and his books often contain elements of science, religion, and history. Brown's books have been adapted into films, and he has also written several non-fiction works. He is a New York Times bestselling author and has won numerous awards for his writing. He is considered one of the most successful authors of the 21st century.