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X-ray lasers scheduled to come online in the next few years promise to create a flood of new structural biology data that could overwhelm current processing and analysis methods. This collection describes a series of X-ray free-electron laser datasets generated at the Linac Coherent Light Source, which the organizers hope will help researchers develop new tools and methods to meet these challenges. All data are deposited at the Coherent X-ray Imaging Data Bank (CXIDB) and openly available to the scientific community.