Thank you! I'm definitely looking forward to reading the full chapter when the book comes out, and I'm very interested in those math-related spells, if only for their sheer novelty. I will say I wish you had included more utility-type spells (e.g., the other shape spells, like shape wood).
I am not going to spam you with a list of questions like I normally do, instead asking only one: you've said that Law and Chaos are going to be important(?) tags. Why no detect/protection from/etc. chaos and law like you have for evil and good? And why not just rename detect evil and good as detect otherworldly influences or something like that?
Also, whoa--heralds get cantrips now? Did we know this? Interesting...