@BernhardHofmann Well…

https://learnosm.org/en/ is a good start. And there are resources like https://osmuk.org/getting-started/editing-openstreetmap/ and https://wiki.openstreetmap.org/wiki/Beginners%27_guide.

I currently do my edits mostly with iD (browser-based), seldomly with jOSM and sometimes with “Go Map!”.

The iD-editor has some nice walkthrough and a lot of keyboard-shortcuts.

The wiki https://wiki.openstreetmap.org/wiki/Main_Page is big, but is very helpful when it comes to the correct tagging of objects or *.

Example: https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dbollard

@BernhardHofmann another very interesting point of #OpenStreetMap is the Humanitarian Mapping: https://learnosm.org/en/coordination/humanitarian/

https://www.hotosm.org/ is specialized on simple tasks, like spotting and mapping buildings and roads.

#HOTOSM, together with https://mapswipe.org can also create some impact beyond your usual reach.

Current urgent mapping projects are here: https://tasks.hotosm.org/explore?orderBy=priority&orderByType=ASC&difficulty=EASY

@BernhardHofmann and if you should be into micro-improvements: https://wiki.openstreetmap.org/wiki/Quality_assurance lists some error detection tools, that show errors with tags or other suggestions.

Please mind the hints / instructions e.g. with “osmose”: https://wiki.openstreetmap.org/wiki/Osmose -> “Only fix real errors which you understand and know how to improve correctly!!!”

Nice example: nearly identical name for a street: “Rua da Guiné-Bissau” vs. “Rua da Guiné Bissau” https://osmose.openstreetmap.fr/en/map/#loc=16/37.02653/-7.937124&item=1xxx%2C2xxx%2C3xxx%2C4xxx%2C5010%2C5020%2C5030%2C5040%2C5050%2C5070%2C5080%2C6xxx%2C7xxx%2C8xxx%2C9xxx&level=1&issue_uuid=f5ee8340-6eca-c63b-c868-9ef70014b155#OpenStreetMap#OSM