This volume is initial reflections on the meaning and the implications of Yuk Hui’s notion of cosmotechnics, which opens up an anti-universalist and pluralist perspective on technology beyond the West. Martin Heidegger’s famous analysis of the essence of technology as enframing and as rooted in ancient Greek techne has had a crucial influence on the understanding and critique of technological society and culture in the twentieth century. However, it is still unclear to what extent his analysis can also be applied to the development of technology outside of ‘the West’, e.g. in China, Africa, and Latin America, particularly against the backdrop of receding Western domination and impending global ecological disaster. Acknowledging the planetary expansion of Western technology already observed by Heidegger, yet also recognizing the existence of non-Western origins of technical relationships to the cosmos, Yuk Hui’s notion of cosmotechnics calls for a rethinking – in dialogue with decolonial studies and the so-called ontological turn in contemporary anthropology – of the question concerning technology which challenges the universality still present in Heidegger (as well as in Simondon and Stiegler) and proposes a radical technological or rather cosmotechnical pluralism or technodiversity. The contributors to this volume critically engage with this proposal and examine the possible implications of Hui’s cosmotechnical turn in thinking about technology as it becomes a planetary force in our current age of the Anthropocene. The chapters in this book were originally published as a special issue of Angelaki.