Hybrid publishing is located somewhere in the center. The terms "contributory contract," "inclusive contract," or "contribution-based contract" are used by hybrid publishers. This is when the author pays for publication and obtains better royalties than with conventional publishing but far less than if they self-publish. The term "contributary model" is sometimes used instead. In a traditional publishing agreement, the publisher takes on all of the risk and rewards of publishing the book. The publisher also receives all of the rights to the book. In return, the publisher provides an audience for the book and manages the distribution of the print copies as well as the sale of electronic books (eBooks). In a hybrid publishing agreement, the author pays a set fee to the publisher which then assigns it to different people who work on the book. These people may include authors, artists, editors, marketers, publicists, salespeople, etc. They might be employees of the publisher or freelancers hired by the publisher. The publisher might also buy advertising or promote the book some other way. All of these activities increase the chance of successful publication and promotion of the book and thus its sales. The publisher will decide how much they want to pay the author. It could be one lump sum up front or it could be based on certain milestones being met (such as selling a certain number of copies).