Booknotes is a web application leveraging AI technology to generate book summaries. Users can search for the books they wish to read, and ChatGPT will generate summaries, key ideas, quotations, and actionable content for each book. Users can read and revisit these key ideas in the homepage widget or the Booknotes app, repeated exposure aiding in faster learning and comprehension of the book's core content. Booknotes aims to help users quickly access and understand the essence of books, ultimately boosting reading efficiency.