This month in Cell Stress: Mitochondria-related hallmarks of reprogramming. Image depicts a fibroblast (elongated mitochondrial network) that has been reprogrammed into an induced pluripotent stem cell (fragmented mitochondrial network). The image highlights mitochondrial morphology changes during cellular reprogramming. Image conceptualized by Megan Rasmussen and designed by Ella Marushchenko and Alexander Tokarev (Ella Maru Studio, Inc.). The cover is published under the CC BY 4.0 license.