npj Flexible Electronics considers research that explores all aspects of flexible electronic systems, including plastic electronics and emerging materials, new device design and fabrication technologies, and applications. The journal covers a broad range of topics including but not limited to: Advanced and emerging materials for flexible electronics, including plastic, molecular and inorganic systems, two-dimensional materials, biomaterials, nanofibers, degradable materials Flexible devices, systems, and applications, including bioelectronics and health monitoring, sensors and actuators, energy harvesting and storage, optoelectronics, computing, robotics, wearables, e-textiles, and packaging Fabrication and processing of flexible devices, including lithography, printing, solution processing, patterning, self-assembly, device integration, transient electronics, circular and responsible electronics Material properties and phenomena relevant for flexible devices, including device physics Device architecture, simulation, and testing