From the introduction: Dim Sum is a style of dining, predominantly but not exclusively Cantonese (Southern Chinese) in which a group of people dine on shared bite-sized dishes served in steamers or small plates. It can also be called Yum Cha, or literally “drinking tea”, which signifies the importance of tea in this meal; these two terms Yum Cha and Dim Sum are often used interchangeably. It’s typically served for lunch or brunch though in modern times it has become more common to see it for dinner.