Here are entered general and comparative works dealing with the Semitic alphabet and its ancient and modern derivatives.Works on systems of symbols that represent the sounds and/or meanings of a language are entered under Writing systems.Works on variations in the style of writing in the past, and especially with ancient and medieval handwriting, are entered under Paleography.Works on written languages as a form of communication or discourse are entered under Written communication.Works on the process or result of recording language in the form of conventionalized visible marks or graphic signs on a surface are entered under Writing. Works on the writing of a particular language are entered under the name of the language with subdivisions Alphabet and Writing, e.g. Greek language--Alphabet; Egyptian language--Writing. Works on systems of writing used by several peoples are entered under Writing, followed by the name of the system, e.g. Writing, Arabic. --subdivision Alphabet or Writing under groups of languages or under particular languages, e.g. English language--Alphabet; Slavic languages--Writing; also subdivision Languages--Alphabet under names of regions, countries, etc.