TalkBook is an AI PDF reader that allows users to ask questions about their PDFs by voice or text. It searches the pages, finds the exact passage, and provides answers with page-level proof. This ensures that users can see the source of the information alongside the answer. Instead of replacing reading with a generic chatbot, TalkBook keeps the book open, highlights the relevant passage, and allows for follow-up questions. Users can upload a PDF, ask a question, and TalkBook retrieves the relevant page before drafting an answer, maintaining the citation with the response. This approach creates a reading experience that feels more like a study desk than a chat box, making it ideal for those who want both answers and evidence from their reading materials.