There have been a number of books recently on the spread of the Indo-European languages, as work on the archaeological cultures of Europe and Asia in millennia BCE has advanced and now been complemented by the powerful tool of archaeogenetic findings. This is a collection of papers by scholars drawing on these new fundings, and it originally goes back to a 2018 conference. The scope of these contributions varies. Some deal with vast issues of subgrouping within the Indo-European language family or connecting specific cultures to those subgroups. Others are focused on a more compact issue, like David Stifter’s look at maritime vocabulary in Celtic which supports an inland Urheimat for Proto-Celtic speakers. Some of the chapters try to reconstruct, continuing a long tradition, early Indo-European societies on the basis of linguistic data.