The previous three editions of the “International Workshop on QCD Challenges from pp to AA collisions” were held in:
Taxco (2016): https://indico.nucleares.unam.mx/event/1010/
Puebla (2017): https://indico.cern.ch/event/617445/
Lund (2019): https://indico.lucas.lu.se/event/1214/overview
