Have you ever read The Paper Magician? 
I actually just found out Disney got the rights to film a trilogy for the books, but I actually haven't read the books myself. Are they good?
I read the first three in about two days. The story is really engaging, it's a fantasy series set in early 19th century England. 
The first three? So does that mean there are more than three books? How many in total?
There are four books so far, but the fourth book is kind of a spin off of the main series. It is about an entirely new set of characters, with the heroes from the old series only doing a brief cameo. 
That's kind of interesting actually. Are the new characters as good as the original ones?
I haven't decided yet. The main character for most of the series, Ceony, is much more relatable than the new main character, Alvie. I really loved Ceony's perspective. 
If I remember from what a friend told me, most of the book is about Ceony trying to save someone named Thane, right?
Yes. Ceony is an apprentice magician and Thane is who she is apprenticed to. They are Folders, which means they use magic to manipulate paper. 
Interesting. Are all the magicians able to manipulate paper, or can other magicians manipulate other materials?
A magician has to 'bond' to a certain material, once they choose it, they can't ever use magic on anything else. But their choices are paper, glass, metal, rubber, or plastic.