Dear Colleague, We are pleased to announce that we will once again be running the NuMart image competition. Please share with us your most striking images of nuclear materials, in all their shapes, forms and colours! We will consider micrographs, data visualizations, or a mixture of both – provided that they are striking and (potentially) meaningful. All entries will be judged by the NuMat 2018 chairs, and up to 20 will be selected and displayed at NuMAT 2018 from 14–18 October 2018 in Seattle, USA. They will also feature on the cover of one of the Diamond Jubilee issues of Journal of Nuclear Materials in 2019. Closing date for entries is 29 June 2018. Further details are available on the NuMat 2018 site.