I once got a letter from a woman who told me she was 90. She said if she were 30 years younger, I would have had to watch out. I guess 60 seems really young when you're 90. She said she would eat me with a spoon.
I've been dealing with the press for 45 years. You need a very long spoon to sup with them. While you are always grateful, they are like badly trained dogs. They smile and wag and bite your arm off.
The book is like the spoon, scissors, the hammer, the wheel. Once invented, it cannot be improved. You cannot make a spoon that is better than a spoon... The book has been thoroughly tested, and it's very hard to see how it could be improved on for its current purposes.