Calibre for mac tiger 10.5.8 social advice

calibre is an open source Mac utility for managing your e-books. With its help, you can read and convert your favorite e-books, fetch metadata for any of your electronic book, download the latest news articles, and so much more.
The application works with a wide variety of e-book formats, provides you with a feature-rich editor, and helps you find and download e-books from the web.