How To Use Images In The Four Phases Of A Book Launch

I recently had a very successful (for me!) book launch for my latest novel, selling 5,838 units on Amazon in pre-orders and in the first week of launch. Book Brush images were an integral part of the campaign behind that success. How do I use Book Brush to support a launch? Preparation I use a freelance cover artist to do my covers, and I ask her to also prepare images (without text), based on...