Basically, this is about marketing. If you want to produce a finished book for the minimum price choose author directed. We have a ton of advertising services that we use and the larger packages include marketing. We include the cost of advertising in these packages and automatically buy ads for your book. In the partnership package we run ads for you using methods we’ve had success with in the past. In the Bookseller pro package we double our budget for ads and pull out all the stops.