The outer edge of the text block, or page leaves, opposite the spine.

The right edge opposite the spine.

The front of a book -- the spine is the back of a book.

The front edge of a book, the edge of a book that opens; the side opposite the spine

The edge of the pages / leaves of a book, that are opposite the spine, or back edge of the book. [Back to the Top

The trimmed edge of the leaves of a book; the edge of the page opposite the spine, bound or back edge of the book.

Edge of a leaf or a board opposite from, and parallel to, its binding edge (i.e. opposite from its spine edge). Fore edge is also used in a more general way to refer to any part of a volume opposite from and parallel to its spine. ( LBI Standard, Glossary, p.14). rain Direction Direction in which the majority of the fibers in a piece of paper or board are aligned and to the direction in which the warp threads run in cloth. Grain direction in all man-made materials used in bookbinding should run parallel to the spine of the volume. ( LBI Standard, Glossary, p.14).