Foxing or not
Hi! I recently noticed these yellow/brown spots on my book and I'm trying to figure out whether this is foxing, mold, or possibly some kind of old moisture damage.
The book is a Spanish edition published in 2024, so I'm a little surprised to see this much spotting. The marks appear on the page edges as well as on several interior pages. Most of them are small yellow/brown spots, although there are a few larger and more diffuse-looking areas.
The spots don't appear fuzzy or powdery to me, and I don't notice anything that looks like active growth, but I'm not sure enough to tell the difference myself.
I've attached several photos, including close-ups of the page edges and interior pages.
Does this look like foxing to you, or could it be mold/moisture damage? Is there anything specific I should check to tell the difference without damaging the book?
Thanks!