 Epidermal flexible pressure sensing arrays have been developed to provide high quality data for medical monitoring, human-machine interaction, and the Internet of Things. These arrays use materials with superior flexibility and performance, and they can be fabricated using various techniques. The electrodes and sensitive layers of these arrays are designed to maximize performance, and recent applications include integration with backend circuits. Future work should focus on addressing the challenges associated with these arrays, such as cost, reliability, and scalability. This article was authored by Shuli Nan, Shikwonsu, Shinching Chow, and others.