Filling. See Weft.
Finishing. 1. All processes after the book leaves the hand of the forwarder are known as finishing processes. 2. The ornaments stamped on a book.
Finishing press. A small wooden press with wooden screws which holds a book with the back up.
Finishing stove. A small gas or electric stove used for heating finishing tools.
Flexible. A form of binding in which the book is sewed on raised bands, the thread being passed entirely around the bands.
Flush cut. See Cut flush.
Fly leaves. Blank leaves at the beginning and end of the book between end papers and the book itself.
Folder. 1. Small flat piece of bone used in folding sheets and in other binding processes. 2. Person engaged in folding sheets.
Folding machines. Power machine for folding sheets.
Folio. 1. A book printed on paper folded in two leaves—four pages. Loosely applied to books over fifteen inches high. Very large books are sometimes called elephant folios. 2. Consecutive page numbers of a book.