Copyright? Copy RIGHT: Steal ideas, steal facts but do not steal words.
Do not collaborate with someone you would not go camping with.
Write on a subject you love. Your profit center should also be your passion center.
If skydiving were safe, the parachute center would not require you to sign a waiver.
A manuscript not submitted is a book not published.
Many first-time authors are not concerned about the advance or royalties, they want the notoriety. They get smarter on their second book and look for the money.