A middle dot also separates a book from its chapter, as in Lunyu · Xue'er.
Tips
usage
The dot sits at mid-height, between the parts of a foreign name, 比尔·盖茨 'Bill Gates', and between a book and its chapter. Never put a full stop 。 or a hyphen in its place. With most Chinese input methods, the key left of 1 types it.
memory
号 'mark' ends the names of other punctuation marks too: 句号 'full stop', 逗号 'comma', 问号 'question mark'.
