Hi!
OpenStreetMap is a map that anyone can edit and anyone can freely reuse. It has a huge ecosystem, and can thus be a bit confusing to edit or to work with.
I thought that having a weekly thread to ask all beginner questions would be nice for everyone interested, so - go for it!
If you know the answer to a question, please answer (so that I don’t have to answer everything).
I gotta work with 5-year old satellite images in Portugal x) but it’s not too bad if you have a great knowledge of the city you’re editing in. Surveying would be the best course of action