Here you can find training materials on how to use the EnMAP-Box
Part I: Introduction to the EnMAP-Box
Part II: Working with Spectral Libraries
EnMAP-Box Source Code: https://bitbucket.org/hu-geomatics/enmap-box
EnMAP-Box Documentation: https://enmap-box.readthedocs.io
QGIS User Guide: https://docs.qgis.org/latest/en/docs/user_manual/index.html