"Twenty years ago, I read a book that changed my life.  It was called The Magic of Thinking Big.  I actually don't remember anything about the book at all.  What I do remember is that in one quick moment, it changed the way I thought about success." - SETH GODIN
When you're reading success books, it's like you're sharpening your axe.  People who don't read are chopping away with very dull axes and so they work very hard and have very little to show for it.  Don't mistake motion for progress.  Sometimes we have to slow down in order to speed up.  Spend time every day sharpening your axe: read from a success book for at least 15 every day.