This workshop will focus on inverse problems at smaller physical scales ranging upwards from nanometers. Modalities will include electron microscopy, optical imaging, micro-CT, synchrotron CT, photoacoustic and acoustic-optic imaging, and fluorescence microscopy, among others. Topics will include superresolution, multi-mode tomography, theoretical underpinnings, and computational approaches. Participants will present and discuss applied and theoretical results. The schedule will include time for informal discussion and sharing of ideas.