How does an ARP Spoofing Attack work?

Firstly, very cool to stay curious and to aks around publicly. I think, starting with ARP spoofing is a great way to dive into the topic. There are a bunch of youtube videos, explaining this and I made the experience, that there are channels I like way more than others in terms of how they present those concepts. David Bombal, and in this case, Certbros is always worth a visit. Than get a package tool like wireshark or for a more easy-to-start-with-alternative Sniffnet and undetstand how traffic flows and how the things explained in videos and article actually happen in real life. Then level up and get your hands on the actual tools for arp poisoning. But be aware, stuff like that is very easy to track back, if used on people or devices, who would call the cops. Like wifi hacking in general. Easy to do, tempting to try it at your neighbors, but almost certain to get very fast in real trouble with your isp and the police. So, stick to experiments at home.