This article introduces "Learn Your Way," an experimental system developed by Google's LearnLM Team that utilizes generative AI to transform traditional textbooks into personalized learning experiences. The core innovation addresses the limitation of one-size-fits-all textbooks by augmenting them with two key concepts: personalization (adapting content to a learner's grade level and interests) and multiple representations (offering various formats like audio lessons, slides, and mind maps). A randomized controlled trial demonstrated the system's efficacy, showing that students using Learn Your Way achieved significantly higher scores on both immediate and retention assessments compared to those using a standard digital reader. Furthermore, pedagogical expert evaluations and learner surveys indicated that all components of the AI-augmented experience were rated highly for engagement and educational merit, ultimately suggesting a powerful new direction for digital education.