Astrophysical shocks are a diverse collection. NASA/ESA and The Hubble Heritage Team STScI/AURA (LL Ori); ESA & Garrelt Mellema, Leiden University, the Netherlands (Red Spider Nebula); CEA/DSM/DAPNIA/SAp and ESA/XMM-Newton (SN 1006); ESA & Lotfi Ben Jaffel, Institut d'Astrophysique de Paris-CNRS-INSU, Martin Kornmesser & Lars Lindberg Christensen (Solar System); ESA/AOES Medialab (Earth's bow shock); ESO (NGC 6744); NRAO/AUI (Cygnus A); NASA/CXC/CfA/M.Markevitch et al. (Bullet Cluster).