The most important things to negotiate in a first contract are the amount of the advance, the royalty rate and who will control which rights, said Jeff Herman, owner of the Herman Literary Agency in New York.
Keep in mind when negotiating the advance how the publisher calculates it, Herman said: “It will tell you how far they’re willing to go.” To calculate how much of an advance it will offer, the publisher looks at the number of books it will sell during the first year and the dollar amount the author will receive per copy. For example, if the author will receive $2 per copy, and the publisher will sell 10,000 copies the first year, the author will earn $20,000 in royalties. That $20,000, he said, is the highest the publisher will be willing to go in negotiating the advance.