Exploring every inch of Bootstrap component is beyond the capacity of this book. Hence, we only discussed a couple of things from Bootstrap that will be essential to the project. Aside from the Bootstrap official website (http://getbootstrap.com/), the following are a couple of dedicated references that dig deep into Bootstrap that you can look into:
Bootstrap tutorials for beginners by Coder's Guide (http://www.youtube.com/watch?v=YXVoqJEwqoQ), a series of video tutorials that help beginners to get up and running with Bootstrap
Twitter Bootstrap Web Development How-To, David Cochran, Packt Publishing (http://www.packtpub.com/web-development/twitter-bootstrap-web-development-how-instant)
Mobile First Bootstrap, Alexandre Magno, Packt Publishing (http://www.packtpub.com/web-development/mobile-first-bootstrap)