Main features: AI-powered book summaries, interactive quizzes, and personalized recommendations. Use cases: helping readers quickly understand book content, discover similar books, and make purchase decisions. Target users: casual readers and book lovers. Core advantages: time-saving, accurate summaries, personalized recommendations, seamless purchase experience. Pricing: free tier (5 summaries per month), paid tier ($4/month, unlimited summaries, chapter-wise summaries, quizzes, etc.), annual plan coming soon.