The European Medical Writers Association have published guidelines which aim to ensure professional medical writers carry out this role in an ethical and responsible manner. Such services are sometimes offered by what is referred to as essay mills and frequently transacted through online interfaces.
In other cases, publishers use ghostwriters to increase the number of books that can be published each year under the name of well-known, highly marketable authors, or to quickly release a topical book that ties in with a recent or upcoming newsworthy event.
Various books bearing Clancy's name were written by different authors under the same pseudonym. The text and graphics and audio made it very engaging. This is the way teaching is supposed to be.
Thank you so much. Ghostwriters are mostly used to pen fiction works for well-known "name" authors in genres such as detective fiction, mysteries, and teen fiction.
In other cases, the ghostwriter will write an entire book or article based on information, stories, notes, an outline, or interview sessions with the celebrity or public figure.