Signed in person by both authors, Neal Stephenson and Nicole Galland, directly on the title page (Not the pre-signed on a blank tipped-in page inserted by the publisher). NOT signed to anyone. Photos of both authors at the signing event will be included with the signed book. 1st Edition/ 1st printing with a full number line: 10 9 8 7 6 5 4 3 2 1. Hardcover. Book is BRAND NEW and UNREAD, opened only for signing. No marks, no inscription. Not a book club edition, not an ex-library. Dust jacket is new, not price clipped, in a removable, protective clear cover. This is a beautiful autographed first edition for collectors. Makes a great gift.