We begin this issue of Kinship with an article that frames the domain of kinship and re-affirms it as a universal category. It is also a critique of the recently published handbook, The Cambridge Handbook of Kinship. Though the word "kinship" appears in the title of the handbook without modification, it is, as the title of the introductory chapter by editor Susan Bamford indicates, about "conceiving kinship," We make evident already determined universal properties that express the boundaries of the kinship domain and the logical properties that universally define the category of kinship.It was uncovered during the empirical study of 'suckling' in the Arabian Gulf that the phrase 'milk kinship' which was widely employed in studies is in fact an umbrella for several phenomena that should be of interest in kinship study. There is a vaguely defined notion of 'adoption', there is fosterage, there is kinship by breastfeeding, and so on. This needed to be sorted out in the context of approaching milk kinship. Then there is the use and misuse of the term adoption, which means different things in different cultural traditions. There are multiple fathers, and there are multiple mothers, and emergent family forms which need the attention of ethnography and theory of kinship. Taking them out of kinship study and relegating these forms to 'relatedness' would eliminate significant implications in kinship study.The institution and practices of kafala in the Arab world is such a subject. It has been receiving scholarly attention in French anthropology whereas many US anthropologists may not have even heard of it. It is particularly confusing when 'foreign labor' is defined by the institution called by the same name, kafala, which translates as guardianship. Yet we find Egypt in its formal documents on kafala with regard to adding orphan children to a family, unrelated to them by birth or marriage, are described by the same term.The implications for understanding kinship are varied, plenty and deep. Kinship study, for a long time, has been too immersed in a binary kinship incorporation mode by which becoming incorporated as a relative was either by birth or marital union. The recent work on 'suckling'