Inside Cover, Volume 127, Issue 5

As presented by Siu Ning Leung, Muhammad Omer Khan, Ellen Chan, Hani E. Naguib, Francis Dawson, Vincent Adinkrah, and Laszlo Lakatos‐Hayward on page 3293 , the scanning electron microscopy (SEM) image illustrates the uses of secondary filler (e.g., carbon fiber) to create a thermally conductive network among the primary filler (e.g., hexagonal boron nitride platelets). The high aspect ratio of the secondary filler enhances the development of a thermally conductive network in the polymer‐matrix composites.