The back cover shows the structure and system integration possibilities of an electrical double layer capacitor composed entirely of environmentally friendly materials. The research team led by Professor Gogotsi found green alternatives for each key component of a supercapacitor. By using such accessible materials as cellulose acetate, graphite foil, and polyvinyl alcohol to design a complete nontoxic system, the resulting energy storage device operates at high levels and can be safely disposed or incinerated after use. More details can be found in the Full Paper by Dyatkin et al. on page 2269 ff. (DOI: 10.1002/cssc.201300852). The cover image was created by Kristy Jost.