Bathymetric map
Bathymetry is the science of measuring water depths, usually ocean depths, to determine the bottom topography. A bathymetric map therefore is a chart displaying this information.
Binding
The cover of the book
Binding Copy
A book which needs to be rebound and is worth rebinding.
Bleaching
The process of whitening or lightening age-darkened paper,or removing stains. A professional process to improve the appearance of a map.
Blind-stamping
Impressed mark usually appearing on the binding of a book. Appears as a decoration or lettering but not coloured or gilded
Boards
The stiff binding material on the front and back of books. The covers.
Border
A (usually) decorative device used to embellish the outer limits of a printed map image.
Broadside (broadsheet)
A single complete sheet of paper printed on one side only.
Browning
The darkening of paper over time. Age-toning. May be indicative of poor paper or improper storage conditions.
