is there a genre of written work specifically concerned with the conception and procedure of literary works, or is it all random interviews or annotated guides?

i like watching "making-of" or "behind-the-scenes" featurettes and documentaries about the behind the scenes machinations of movie making, but in terms of literature, I'm not sure what to look for if i want to learn about the process Martha wells went through to conceive the murderbot diaries, for example.

i can search for making-of The Matrix and find documentaries, but not making-of project hail Mary and find similar literary results.

is there a section of literature like this?

should i be reading annotated editions?

thanks