Book was just announced - Quail Ridge Books has a preorder link up for signed copies, but they do have a disclaimer saying they don’t know how many (if any) they’ll get. You can leave a note in your order saying you’re only interested if they do get signed copies, so I figured it was worth a shot. Not sure if anyone here has experience with them - most of the other preorders they have on their page are ones I’ve seen elsewhere, so I don’t think it’s out of the question they’ll get some in stock. Link here - you have to scroll down. https://www.quailridgebooks.com/featured-signed-preorders