Of Course there is the novel by Victor Hugo
The Hunchback of Notre Dame: The Stage Musical which features musical arrangements of 17 songs from the musical.
A self-published work that is a prequel. to the original novels. I myself haven’t it as of yet but I will share them.
The is also biography books of the actors who have been in movie version of Hunchback that give a little insights and story about the movies.
Tis Herself is the autobiography of Maureen O’Hara
My Hollywood: When Both of Us Were Young is the autobiography of Pasty Ruth MillerFollow thehunchblog