Arguably, in business books, I don't think there's much that has never been said before.

In giving presentations, use the 10/20/30 rule....use only 10 slides, take 20 minutes maximum, and use at least 30-point fonts.

An editor who is a mentor, advisor, and psychiatrist. Don't kid yourself-a good editor will make your book better.

For me writing is as close to being an engineer as possible.

Enchantment can be done with writing but I think enchantment is basically a prospective or an operating system for life. That you can enchant a person who is assigning your airplane seat, your hotel room, your waiter, your waitress.

Klout and various measurements of influence are fun. I love to see where I score on them, but there's a computer algorithm behind the calculation. If there's an algorithm, it can be gamed. Even if it's not gameable, you have to take a leap of faith that the number of followers, retweets, mentions, whatever really mean something.

I learned how difficult it is to self-publish a book. It's complex, it's confusing, it's idiosyncratic.