Genre is a way of making a text appear in different styles. There are certain elements called paradigms which identifies the genre and by reading them people bring a set of expectations to their reading. Genre is a specific type of movie, film and writing. It is fundamental for both the reader and the creator. It helps the producers and the viewers to decide what they are willing to see and what is in demand like the requests from the audience.
Audience are the viewers or the readers who decide what kind or type of movie, book or tv-serial they want to watch or read and to make that easier it is usually arranged alphabetically and provide a wide range of genres for them example romance, sci-fi etc. Audience already predicts what will happen next according to the genre which keeps them interested and extremely focused. Some genres leaves an impact on the audience and then they may shape themselves in that specific way due to which these people are specified as there fans.
Producers market texts according to genre. There are some conventions for example if there is blood or horror noises in a movie, then the viewer expects that certain movie to be horror or if it's a teenage high school movie featuring romance, the audience will instantly guess what will happen at the end, so this kind of convention is known as Conventions of Verisimilitude. This is how the producer keeps audience interested and make money out of it.
Genre is a great way of helping define different methods of communicating to the audience and provides guidelines as well as shorthand for producers. A genre is defined and then re-defined which allows the target audience to have many different and varying products even within a genre