Ok, I don't have a book as such. But you read my blog. Think of it as a book that you don't have to pay for unless you like it. Did you like it? Did it transform your life? Then show your appreciation by donating:

You can use the price of a book as a rule of thumb. If you think my book is incomplete then pay the price of a fraction of a book. Pay the rest later when you think it is more complete.

As I see it, a blog is so much better than a book. It doesn't waste paper. The reading experience and typography is better. You are still free to save and print any posts you want. And unlike a book, it is editable. Your generous donation will encourage me to write more posts and improve previous posts, if this is what you want to see.