Inside Back Cover, Volume 1, Number 2, October 2022

Inside Back Cover: The cover image is based on the Research Article A functionalized ionic liquid as the next‐generation nano‐lubricant by Wang et al. This paper demonstrates that a novel nanometer‐thick ionic liquid (IL) lubricant performs better than the state‐of‐the‐art lubricant, i.e., perfluoropolyether (PFPE), which establishes the IL as the promising candidate for the next‐generation media lubricant in hard disc drive (HDD) industry. Meanwhile, the finding here has important implications in many other applications involving nano‐lubricants.