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Then the user chooses a spine size that will match the document. Standard sizes are 4.8 mm ( 3 ⁄ 16 in) (for 16 sheets of 20# paper) up to 51 mm (2 in) (for 425 sheets). Spine lengths are generally 280 mm (11 in) to match the length of letter-size paper.
The following table is adapted from the scale of the American Library Association, [1] [9] which uses a basis sheet of 19-by-25-inch (483 by 635 mm) [10] which is, confusingly if not explained by the source, half the text/book stock sheet of 25-by-38-inch (635 by 965 mm), and in which size refers to the dimensions of the cover (trimmed pages ...
Permissive licenses can be used within copyleft works, but copyleft material cannot be released under a permissive license. Some weak copyleft licenses can be used under the GPL and are said to be GPL-compatible. GPL software can only be used under the GPL or AGPL. [62]
Point Metric size American system Continental system Chinese system American [4] British [1] French [5] German [6] Dutch Character Pinyin Meaning 1 ≈ 0.353 mm: American [a] ...
The strength of the copyleft license governing a work is determined by the extent to which its provisions can be imposed on all kinds of derivative works. Thus, the term "weak copyleft" refers to licenses where not all derivative works inherit the copyleft license; whether a derivative work inherits or not often depends on how it was derived.
The Open Source Initiative defines a permissive software license as a "non-copyleft license that guarantees the freedoms to use, modify and redistribute". [6] GitHub's choosealicense website describes the permissive MIT license as "[letting] people do anything they want with your code as long as they provide attribution back to you and don't hold you liable."
Wire binding is a popular commercial book binding method, and is known by various names, including double loop wire, double-o, ring wire, twin loop wire, wire comb, wire-o, wirebind and wiro. With this binding method, users insert their punched pages onto a C-shaped spine , and then use a wire closer to squeeze the spine until it is round. [ 1 ]
A less expensive binding method is that used for paperback books (sometimes called softback or softcover). Most paperbacks are bound with paper or light cardboard, though other materials (such as plastic) are used. The covers are flexible and usually bound to the pages using glue (perfect binding).