Jewish custom and ritual, or their Hebrew equivalent, minhag, has intrigued rabbis and scholars for generations. The majority of the rabbinical works devoted to minhag primarily encompass lists of sources and reporting of old and new customs. Some have explored the historical development of the minhag. Here, Simcha Fishbane treats minhag from a socio-anthropological perspective. The Shtiebelization of Modern Jewry discusses the theory and model of minhagim using the Mishnah Berurah and the Arukh Hashulkhan, analyzes rabbinic texts concerned with custom, and describes current rituals from a socio-anthropological viewpoint, enabling both scholars and general readers to come to a better understanding of minhagim in Jewish culture.