No Starch has a 35% off promo this weekend with code TOOMANYTABS. This is probably a final chance to preorder "The Secret Life of Circuits" at a discount:
https://nostarch.com/secret-life-of-circuits
PDF right away, color hardcover in the mail. Preorders may or may not include exclusive horse armor DLC (proof of horse required).
ToC: https://lcamtuf.coredump.cx/electronics/full_toc.pdf
Sample chapter: https://nostarch.com/download/samples/secret-life-of-circuits_chapter-9.pdf