Great idea for research. I can see how you might use some of this. But brings up an important question: what are they supposed to do with the book? How does its magic work? It also makes me think about scenes you can add to your narrative. Are there times when people need to consult the book? Nissa could be the expert who knows how to open it and allow one of the elder fairies to read it. There could be a scene when a tour group of young fairies come to look at the book, and Nissa's job is to show it to them in such a way that won't harm the pages.
The more the book is actually "functional," the more it makes sense that Alvar would want to steal it.
The more the book is actually "functional," the more it makes sense that Alvar would want to steal it.