價格：免費
檔案大小：12.5 MB
版本需求：系統需求：iOS 11.0 或以後版本。相容裝置：iPhone、iPad、iPod touch。
支援語言：英語
Textbooks and assessment books that come bundled with instructors who are just a tap away when you need them. And buy only the chapter or unit you need. Learning from books is now not only more effective but also cost-effective too.
支援平台：iPhone, iPad