This is an advanced tour of Common Workflow Language features. The audience for this training should have some basic familiarity with CWL. The goal is to provide awareness of features that exist in order to give learners a toolkit for solving their problems with CWL.
If you are completely new to CWL, you should go through getting started training and then return here.
The training presentation is available as CWL Advanced Training.pdf and CWL Advanced Training.odp.