This book has remained very long in my library ... because of the movie. Having never hung on the film adaptation, I thought the book as boring and slow the work of Kubrick. In fact, there is nothing and you can rush in bookstores. The pages and devour the story remains involved from beginning to end. I would even be tempted to associate with Asimov Clarke. The themes of artificial intelligence (robots cycle) and development of civilizations (foundation cycle) are treated by clarke also masterfully by the good doctor Asimov. This comparison may be unwelcome is a compliment coming from me. Read it, you will take, and what is most important, many pleasures.