Dos-À-Dos

A style of binding whereby two or more books (or other items) are bound together side by side with adjacent items sharing a cover board and having their spines facing in opposite directions. (This is a strange and unusual binding, and not how the Ace Double was bound — that was tête-bêche, a style of binding whereby two books (or other items) are bound together head to tail with a shared spine.)

Books that use dos-à-dos binding include Heads On and We Shoot: The Making of Where The Wild Things Are.