如果是一名程序猿还仅认识PDF、WORD，地球环境可能太复杂，可以去太空瞧瞧！
calibre一款强大的电子书管理工具可以支持多种电子书格式文档阅读器
calibre is a powerful and easy to use e-book manager. Users say it’s outstanding and a must-have. It’ll allow you to do nearly everything and it takes things a step beyond normal e-book software. It’s also completely free and open source and great for both casual users and computer experts.
- Save time on managing your e-book collection
- Use it everywhere and with anything
- Comprehensive e-book viewer
- Download news/magazines from the web
- Share and backup your library easily
- Edit the books in your collection
- Satisfy every e-book need and get support
这几种mobi、azw3、 epub格式电子书类似网页展示，可以自适应各种显示设备，电脑、手机、平板等......epub格式IE可以直接打开是不是很酷！清晰吧、爽吧......