Strong paper used for securing the body of a book to its case. Endpapers may be plain, coloured, marbled etc. and should be specified with the grain direction parallel to the spine.
Engraving
1. Printing plate etched for use in letter-press.
2. Print made from such a plate.
Etching
Form of print created by cutting the image into a specially coated plate using acid.
Even working
A total of pages in a publication which can be produced entirely by printing sections of the same numbers of pages (16s, 32s, etc.)
Extensible paper
Paper which has tear-resistance due to stretching properties.
Extent
Length of a book in pages.
1. Exact reproduction of a document or part of it.
2. Machine which copies and transmits documents by telecommunications. Hence, facsimile transmission.
Feathering
In printing, ink-spread on inadequately sized paper.
Film make-up
Positioning pieces of film ready for platemaking. Page make-up is used as the term for pages or assembly for full imposition.
Film processor
Machine which will automatically develops, fix, wash and dry exposed film.
Flatbed scanner
A scanner with a flat platen, rather like a photocopier, as opposed to one with a scanning drum.
Font size
In the UK and US, font size is usually given in points (1 point = 0.351mm/ 1/72 inch) and 12 points make up a pica, the basic unit of typographic measurement.
Four colour process
See CMYK, colour separation.
French fold
The fold used on some Christmas cards, which folds a sheet into four pages, exposing only one side of the sheet and leaving the join at the edges.
Device on a printing press for holding the sheet.
Guillotine
Machine which cuts paper into sheets. Programmatic guillotines can perform a whole series of measured cuts without re-setting for each measurement.
Gutter
Binding margin of a book.
Headband
Cotton or silk cord attached to the top of the back of a book. See also tailband.
High resolution
High density of detail. Is often used to describe the numbers of pixels or dots per unit area in an image. The higher the resolution, the more information there is in a given amount of visual space.
Hygro-expansivity
Growth or shrinkage of paper due to moisture content. Hence also 'hygro-instability'.
Hygrometer
Instrument used to measure relative humidity.
Hygrometry
Measurement of humidity.