Michael Hartl's Rails Tutorial was the best book I have read for learning Rails. I picked it up during university and quickly moved onto my own projects and from there into a career in web development. Without a doubt this book is the biggest contributor to me finding my first contracting job and I recommend it to anyone who shows interest in learning how to develop for the web. I will definitely be purchasing the third edition when it comes out, purely to show support for such a great resource.

Thanks Michael, I hope the third edition's launch goes well.