My contract with my publisher says that I'm not allowed to sell my author's copies, nor am I allowed to resell the books I buy at the 50% author's discount. However, I find myself scheduled at events too small to interest a bookstore, or too far from any bookstore. My publisher's marketing person has told me to just go ahead and sell my author's copies, but what about collecting sales tax? Surely this can't be legal? And these copies won't count against my advance! What do other people do?