2-2-2-2-2-2-2-2-2-2-2-2-2 From: "Valentine, Gregory" <gav4@xxxxxxxxxxx> The subject Topical Collection is now open at *Bulletin of Volcanology*, and we are seeking contributions. The preface and an introductory Perspectives paper can be found at: https://link.springer.com/journal/445/topicalCollection/AC_656392f88370ce4c2ae87cec2da1c6d0/page/1 The Collection will be open for contributions for at least two years and there are no deadlines for submission. However, for planning purposes, please let Greg Valentine (gav4@xxxxxxxxxxx) know if you are planning a contribution and its tentative title. Contributions can include experimental and field datasets that are well suited for model validation and/or benchmarking, as well as models themselves. Manuscripts are to be submitted via the normal *Bulletin *online process, where you will have an opportunity to flag your ms as a contribution to the Collection. 2-2-2-2-2-2-2-2-2-2-2-2-2 ------------------------------