Here is a NYT obituary, here is a Guardian appreciation. Here is Brook’s Wikipedia page. He was one of the very greatest talents of our time. He was most of all a theatre director, and so most of his output I have never seen. I can report that his filmed Mahabharata (5.5 hours on YouTube) is one of the great creations. He and his co-workers spent eight years on the project. I also give his King Lear, again on film, an A+. At Lincoln Center I once saw his staging of The Magic Flute (in French!), again an A+.