23 Things Physical Samples

Physical samples are a basic element for reference, study, and experimentation in research. The 23 Things for Physical Samples aims to provide a reference overview of resources centered on the management and sharing of data on material samples. The output focuses on existing work, recent developments, recommended practices, and community initiatives. The 23 resources are related to the following categories: 1) a general introduction, 2) persistent identifiers, 3) metadata, 4) citing samples, 5) data licensing and ownership, 6) tools, 7) repositories and 8) communities of practice.