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Learn about nonprinting characters or formatting marks, which are not displayed at printing but can be customized on the monitor. See the most common nonprintable characters, such as space, pilcrow, tab, and page break, and how to insert them in different word processors.
A control character is a code point in a character set that does not represent a written character or symbol, but causes effects such as ringing a bell or moving the cursor. Learn about the history, usage, and examples of control characters in computing and telecommunication.
Learn about the non-breaking space character (U+00A0), which prevents automatic line breaks and whitespace collapse in text processing and digital typesetting. See its uses, variations, examples and encodings in Unicode and HTML.
Widows and orphans are single lines of text that dangle at the beginning or end of a block of text, or form a very short final line at the end of a paragraph. Learn the definitions, guidelines and techniques for avoiding them in typesetting and web-publishing.
Letter spacing is the adjustment of the space between letters to change the visual density of text. Learn about its history, methods, and how it affects legibility and perception.
A zero-width non-joiner (ZWNJ) is a non-printing character that prevents ligatures in writing systems that use them. Learn how ZWNJ is used in different languages and scripts, such as Persian, Malay, Indic, and emoji.
A comprehensive list of symbols and signs used in typography with Latin script, with Unicode names, aliases, and links to related articles. Find out the meaning, function, and usage of various symbols such as apostrophe, asterisk, at sign, caret, circumflex, etc.
The zero-width space (ZWSP) is a non-printing character used to indicate word boundaries in scripts without explicit spacing. It can be represented by numeric character references ​ or ​ in HTML and Unicode.