Tie-In novels are not to be mixed up with movies/TV based on novels. They are books written based on movies, TV shows, comic books and even RPG games. These books can be either a novelization of a script or an original novel. This type of writing falls in a similar category as ghostwriting.
Many authors write tie-ins to supplement their income though there are some who build their entire careers in this field. This is a “work for hire” field. Writers are paid a flat fee and royalties are rarely included. Payment for tie-in books depend on several factors: the popularity of the movie/TV show, your background and book sales history, the difficulty of the project and whether it is novelization of a script or an original novel.
I own only one tie-in novel. I use to be a big fan of the Buffy the Vampire Slayer series. I don’t know how many were written for the series but I own the first book written called The Harvest. I have yet to even read this book. It sits on a shelf collecting dust at the moment, but I am curious. How many of you own tie-in novels? Do you think they accurately represents your favorite movies, TV shows, etc? What is your favorite tie-in novel(s)? Would you consider writing a tie-in novel?