Invitation to graphons The first course in graph theory usually covers concepts such as matchings, independent sets, colourings, and forbidden subgraphs. Around 2004, Borgs, Chayes, Lovasz, Sos, Szegedy, and Vestergombi introduced a very fruitful limit perspective on graphs. The central objects of this theory, so-called graphons, are suitable measurable counterparts to graphs. In the talk, I will outline the syllabus of a hypothetical first course in graphon theory, in particular introducing versions of all the aforementioned concepts in the graphon setting. Based on work with Dolezal, Hu, Mathe, Piguet, Rocha.