• All-new handbook design with images, key facts & reading times
• Listen upgraded: follows the text as it reads, with speed & voice controls
• Quick Check mini quiz at the end of each chapter
• Flashcards 2.0: swipe to sort Know / Still learning, decks by topic
• Flashcards & tests now share one Wrong Answers list
• Practice questions can now be read aloud
• Fixed highlights not reappearing in chapters
• Clearer, larger text throughout