The Rule That Drives Book Sales… Someone in publishing went on a business course in the early 2000s and got very excited by one particular principle…😁 Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Share on Tumblr (Opens in new window) Tumblr Share on Pinterest (Opens in new window) Pinterest Email a link to a friend (Opens in new window) Email Print (Opens in new window) Print Share on LinkedIn (Opens in new window) LinkedIn Share on Reddit (Opens in new window) Reddit Like Loading...