The Witcher books, written by Andrzej Sapkowski, are a series of fantasy novels and short stories centered around the character Geralt of Rivia, a monster hunter known as a witcher. The series explores themes of morality, destiny, and the complexities of human nature, set in a richly detailed world filled with magic, mythical creatures, and political intrigue. The main series includes five novels, starting with Blood of Elves, and several short story collections, such as The Last Wish. The books have gained international popularity, leading to adaptations in video games, a television series, and graphic novels, further expanding the Witcher universe.