Canadian binding
n.β Β«It was initially a spiral-bound paperback, but when consumers could not easily find it on bookstore shelves, Firefly worked with its printer, Friesenβs, to wrap a spine around the wire-o binding. Now known as βCanadian bindingβ among some publishers, the method allows a hardcover book to lay flat while open.Β» ββFirefly Readies New Edition of Its Bestselling Book” by Lynn Andriani PW Daily Aug. 24, 2006. (source: Double-Tongued Dictionary)
“lay flat”??? Publishers Weekly?!?!?