To be a series on Goodreads, books need to have more than a common theme -- like characters in common, an overarching storyline, a shared universe, etc.
Hi! They'll be connected by shared universe (aka, same world, same magic, some secondary/tertiary characters crossing over). An upcoming book would be the backstory of a secondary character of Dance With Me (e.g., that secondary character is now the main character, but it happens in the past).
Series Name: Tales of the Bookshelves
Book 1: Dance With Me
Thank you so much!