Systemic thinking is required to design increasingly complex mechatronic systems. SySML is a description language that is tailored precisely to this purpose. Based on UML, it also enables the modelling of requirements, hardware and time behaviour in the context of both simulation and testing. A model-based engineering decision is expensive and risky, so efficient assessment of the suitability of SysML is critical to success, as is rapid familiarisation. The book and the accompanying digital material with the models in two modelling environments (EASystems and CoDeSys) enable a step-by-step, efficient introduction that extends to the various facets of more complex mechatronic production systems. The book plus material can be used both as a basis for courses, including exercises and interactive formats, and as a step-by-step introduction to more realistic models from the perspective of manufacturers of mechatronic systems through to production systems.