CJK characters
Chinese is written almost exclusively in Chinese characters. It requires over 3,000 characters for general literacy, but up to 40,000 characters for reasonably complete coverage. Japanese uses fewer characters — general literacy in Japanese can be expected with 1,945 characters. The use of Chinese characters in Korea is becoming increasingly rare, although idiosyncratic use of Chinese characters in proper names requires knowledge (and therefore availability) of many more characters. However, even today, students in South Korea are taught 1,800 characters.
Chinese given name
Chinese given names are almost always made up of one or two characters and are written "after" the surname. Therefore, Wei () of the Zhang () family is called "Zhang Wei" and not "Wei Zhang". Despite the relative paucity of Chinese surnames, given names can theoretically include any of the Chinese language's 100,000 characters and contain almost any meaning.