This book called Mindfulness[1], was gifted to me, is very short and easy to read, it has nothing to do about spirituality (which I though it was), and has real life and practical examples.
So because it changed my view then I could benefit from a lot of other good materials and talks that before this book I'd not even consider. Long term it also gave me a rational reason to meditate.
I think the saying "the master appears when the student is ready" kind of applies to books, it the depends the moment of your life the book will tell you something or not.