I can hardly believe Asimov wrote this book 32 years after he wrote The Foundation Trilogy. This fourth book in the series follows Golan Trevize, a young councilman from Terminus, on a journey to find Earth, which, he hopes, will lead him to the Second Foundation. Instead, he finds Gaia, Asimov’s fascinating and thought-provoking concept of a self-contained world with a super-consciousness. This book is brilliant, as Asmiov is wont to be, and captivating, and makes me want to do nothing but read Asimov books for as long as there are Asimov books unread.