Trying to isolate my office as best as possible
I'm new to acoustics/sound treatment and I was wondering how I can best isolate my office from the rest of my apartment. I take work calls and play games into the evening and don't want to potentially bother my girlfriend when speaking (bed is up against office wall). Obviously I will be considerate of the noise I make but I want to do as much as I can. I'm mostly looking for product recommendations (or what to look for in products) and strategies.
I ideally want the office to be nice to look at as well, if that is feasible. Thank you so much!