"Cups and their customs" is a book that explores the history, cultural features and symbolism of cups in different countries and eras. The authors, Henry Porter, a physician, and George Edwin Roberts, a scientist, travel through time and space to describe how bowls have played an important role in people's lives, from ritual ceremonies to everyday drinking. Thanks to detailed descriptions and interesting facts, the book will allow the reader to better understand the meaning of the cup in world culture.