This type is concerned with preserving every possible detail of the book exactly how it exists in the book, just transferred to the film as a medium.
The artful adaptation
It is concerned with finding balance between being true to its own as a work of art. Accordingly, it is like a conversation between the book and audience.
The Loose Adaptation
This type is concerned about keeping a few elements or some semblance of the premise of the book it's based on, but then more or less does its own thing with them.
The Transformative Adaptation
This type of adaptation seeks to highlight the timelessness and universality of their source works' messages and themes.
Literary adaptation
is a process of adapting a literary source (e.g. a novel, short story, and poem) to another genre or medium such as a film, stage play, or video game.
It involves adapting the same literary work in the same genre or medium just for different purposes, e.g. to work with a smaller cast, in a smaller venue (or on the road), or for a different demographic group (such as adapting a story for children),