Turning a book into a TV series requires more than just faithful retelling—it demands emotional truth and creative reinvention. Series like The Handmaid’s Tale, Normal People, and Sherlock succeed by honoring their source material while transforming it for the screen. Whether by expanding a dystopia, capturing unspoken intimacy, or reimagining a classic detective, these adaptations prove that the best ones don’t just follow the book—they translate its soul.