Eckhart Tolle suggests that before and after his awakening he got mostly influenced by the teachings of Meister Eckhart , I AM THAT and other esoteric teachings. He adopted the name Eckhart because of the appreciation he had for the tachings of Meister Eckhart.
After reading this book I read Jiddu Krishnamurty’s books. They also addressed the problems related to mind and time. The difference is that Krishnamurty’s approach is abstruse subtle reasoning whereas Eckhart makes things much more easier for you by focusing on the present moment. The Power of Now is indeed one of the best books I have ever read. If you are a spiritual seeker or like reading self-improvement books; you should read this book.
See other book reviews here: Tao-Te-Ching
The Einstein Factor
Guru Nanak–Jairam Mishra