I haven’t read the other Tyson books mentioned by other reviewers, so for me, (a mere mortal, not a mathematician) the material was fresh, illuminating, and simply wonderful. Dr. Tyson’s ability to summarize complex theories and translate them into a digestible cogent whole is phenomenal. I neither have the time, desire, proclivity or ability to understand complex mathematical formulas, so having a work that rendures them understandable, and at the same time, provides a sense of wonder fills my heart with gratitude beyond words. Dr. Tyson is the embodiment of a national treasure. Thank you!