A paper by Tom Welling, Sina Sadighikia, Albert Grau Carbonell, and Maarten Bransen (all from SCM group) has become the cover story of the latest issue of Particle and Particle Systems Characterization. The design of the front cover was by Albert Grau Carbonell. In their paper, they show that by choosing proper solvents and by low-dose electron beam imaging, Brownian motion of nanoparticles in liquids can be tracked despite the very high self-diffusivity of nanoparticles in liquids, and without influence of the electron beam (T.A.J. Welling et al., Part. Part. Syst. Charact. 37 (2020) 2000003)