Interesting quotes in the article:
And what’s different about the Tolle connection for Winfrey is that for the first time in her much-applauded Book Club’s history, she’s gone into business with the author.
But is Eckhart Tolle an appropriate spiritual leader? He told an interviewer that he stopped going to school at age 13 and didn’t resume any education for at least a decade. In the same interview he says he graduated "with the highest mark at the London University."
He says in interviews that he had a personal epiphany in 1977 at age 29 after a life of suffering from suicidal depression.
For seekers who want to compare Tolle with Christianity, see here and here.