However, I think it would make sense to split everything into two subchapters. One for Symbology and one for Print Map.
The section "Types of maps" has some overlap with Modul 1- What is GIS? So a certain extent that's fine, just keep it in mind.
Keep in mind that Modul 3- Geodata Classification goes into detail about the statistical site of classes and intervals which has some overlap with the symbology part. That's absolutely fine since Modul 4 is about to bring everything styling-related together.
The content is great!