The present tutorial will give the participants a basic understanding of the new-style workflow languages for FaaS through a tech-talk with an on-hand project. The tutorial is open to anybody interested on FaaS and FaaS composition (AKA workflows, e.g. Fission Workflows, IBM Composer, AWS Step Functions) with no need of prior knowledge on the matter. Ideally the participants should have a basic understanding of programming and what a JSON/YAML file is, and bring a laptop in case they want to follow the on-hands part.