A figure from the research paper "Preconditioning Inverse Problems for Hyperbolic Equations with Applications to Photoacoustic Tomography" by Alexander Beigl, Otmar Scherzer, Jarle Sogn (JKU, Linz) and Walter Zulehner (JKU, Linz) got chosen for the front cover of the International Journal "Inverse Problems". The picture appearing at the Volume 36, Number 1 of the journal presents initial source reconstructions from Photoacoustic Tomography data.