The Galactic center and the Galactic plane are amongst the most interesting regions in the Fermi-LAT all-sky survey.
In this tutorial we will use the Fermi science tools to investigate images of the diffuse emission and sources in that region and end with a quick look at the hint for a spectral emission line at 130 GeV that has recently caused a lot of excitement because if real it would most likely consitute the first detection of dark matter.