For the big story that really demands a book, a ghost writer is essential. Of course, this type of work can take on a variety of styles, format and voice. For this type of project to be successful the original author must be a quick study of history and niche elements of a larger grouping of perspectives, which are often expressed as dimensional elements. Again, this type of story rather fictional or non-fiction is largely dependent on the ability of the writer to clearly and compassionately communicate with the person or persons commissioning the work. Furthermore, a real ability to hear those in the story and express their take on the situation is imperative if the rendering is to be a cohesive success.