Although many people discount this book for being based on pedestrian examples, I found the core meaning quite good. If you ignore the out of date metaphors and relationships represented in the book, I think a lot can be understood.
If you haven't read this book yet, read it! It does exactly what it says on the tin, and explains habits, that once ingrained, will change the way you work and live. One of the best books I have ever read, period.
One of the best books to read in your journey to become a leader of yourself and others. Loved the bit about how if you blame others you give them the power instead of yourself.
This is the type of book you keep going back to again and again!