The Universe in a Nutshell attempts to address the relative difficulty of Hawking"s first foray into popular science, A Brief History of Time. While this sold in its millions, few readers got past the first few chapters. Helpfully, this new work is full of beautifully prepared colour illustrations and decorations, and has a "tree-like" structure, so that readers can skip from chapter to chapter without losing the thread. In 200 highly illustrated pages, Hawking is pushing the frontiers of popular physics beyond relativity and quantum theory, past superstring theory and imaginary time, into a dizzying new world of M-theory and branes. It"s a colossal venture--one Hawking is uniquely qualified to undertake--but it is crammed into far too small a space. When you consider the other rather good tomes being written on the nature of consciousness these days, the decision to limit The Universe in a Nutshell to the dictates of publishing rather than to the natural parameters of the material is an unfortunate one. Worse, Hawking tries to paper over the complexity of his field. He rushes over the very concepts he should be helping us understand, only to belabour simple ideas, often by means of flip Star Trek metaphors. Also unfortunately, the illustrations--by turns trivial and opaque--mirror the faults of the text. The author"s name alone will guarantee sales, but the book we long for--the long, ruminative, poetic celebration of Hawking"s world--seems as far away as ever. --Simon Ings