It's also worth pointing out that if you read 3 books a year, you would have read 90 books in a 30 year time span. I would suspect that Norvig reads a good deal

It's also worth pointing out that if you read 3 books a year, you would have read 90 books in a 30 year time span. I would suspect that Norvig reads a good deal more than that and that this selection of books for his book shelf does not represent everything he has read or owns.