[1] Susskind writes in the preface that the book is mainly about "the scientific explanations of the apparent miracles of physics and cosmology and its philosophical implications".

[3] Booklist noted that the book was "of utmost significance to science readers" and how "in this extraordinary work, Susskind ushers us to the mind-bending edge of a possible paradigm shift".

The reviewer then stated that "persistent readers will finish this book understanding and caring about contemporary physics in ways both unexpected and gratifying".

[3] Library Journal said that the book is able to explain String Theory and how it can unite general relativity and quantum mechanics together.

Susskind, one of the inventors of string theory and a leading advocate of the landscape and multiverse ideas, does an excellent job developing the necessary background in quantum mechanics, relativity, particle physics, supersymmetry, string theory, black holes, cosmology, and inflation.