Another thing that's quite different in writing a book as a practicing newspaperman is that if you look at what you've written the next morning and you think you didn't get it quite right, you can fix it. ↗
I still manage to spend around 40 hours a week at work but it is a lot more focused on what can make money as opposed to what makes me look good in the papers. ↗
There are some movie stars in Hollywood that are so scared, they also tell the reporter that they are recording them, in case there is something wrong with what they wrote about them in the papers. ↗