Eckhart Tolle is a well-educated man who is fluent in several languages and studied Psychology, Philosophy, and Literature at the University of London. He also was in a postgraduate program at Cambridge towards his PhD, from which he dropped out.
But his education, and even his intelligence and ability to write and speak effectively, have nothing to do with the insight he brings to the human condition. Knowledge and education were of no comfort to him during the fretful nights and anxious days that plagued him for many years. Education, learning, degrees, and credentials have nothing whatsoever to do with grasping what he came here to teach.
His teachings focus on the power and beauty of being in the present moment. This awakened state of consciousness goes beyond the unfortunate tricks of the ego and its non-stop tangle of thoughts. If we are going to survive as a species and not wreck most of the planet in the process, this awakening is the essential next step in human evolution.
All the ancient spiritual communicators have brought this same message. Tolle just relates it to our times. He chronicles how the human ego, unique only to humans, causes untold suffering and destruction—as witnessed by history. With 110 million estimated people who have been put to death under communism alone, the rest of the death toll resulting from humans inflicting violence on each other is monstrous. So he is putting this ancient philosophy in the context of historical as well as modern developments that affect the peace and well-being of each one of us.
So, nobody “should” read his reflections on how the ego-mind works just because he is the latest authority on how we should live our lives and win the game of life. But if we passionately want to find a way out of the knots the ego-mind, which cannot abide in the present moment, then he is there to guide the way.