Mystery novels have thrilled and captivated readers for centuries with their suspenseful plots, unexpected twists, and intriguing characters . Whether you love classic detective stories, psychological thrillers, or modern crime fiction , the best mystery books will keep you guessing until the very last page . Here’s a list of 20 must-read mystery novels , complete with details about their authors, country of origin, genre, publication year, language, and global popularity . 1. The Girl with the Dragon Tattoo – Stieg Larsson Author : Stieg Larsson (Sweden) Published : 2005 Genre : Mystery, Crime Thriller, Psychological Thriller Language : Originally in Swedish (translated into 50+ languages) Popularity : Over 100 million copies sold , adapted into movies and TV series . About the Author : Larsson was a Swedish journalist and novelist known for his Millennium series , which exposed crime and corruption. Why Read It? : A gripping Nordic noir novel featuring hacker Lisbeth Sa...