opening up
The process of "opening" a newly bound book (other
than an edition binding), in order to improve its
flexibility. The usual method is to hold the book
fore edge up, then by regular, uniform motions, a
few leaves at a time, pressing the leaves down,
first at the front, then at back, and then
repeating, until the center of the book has been
reached. "Opening up" helps avert strain on the
binding and also permits freer opening of the
book. See also: BREAK
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