"Lively and provocative... Mr. Hawking clearly possesses a natural teacher's gifts-easy, good-natured humor and an ability to illustrate highly complex proposition with analogies plucked from daily life." -The New York Times "Charming and Lucid...( A book of) sunny brilliance". - The New Yorker "This book marries a child's wonder to a genius intellect. We journey into Hawking's universe while marveling at his mind -The Sunday Time (London). "He can explain the complexities of cosmological physics with an engaging combination of clarity and wit... His is a brain of extraordinary power."-The New York Review Books.