Dog licking

Hi everyone, I adopted my 2 year old dog a few months ago. She is a great dog but I’ve noticed she licks obsessively. Not herself necessarily, but everything else. If I’m sitting petting her she’ll just be aggressively licking me the entire time. My hands arms legs & especially clothing. She does it to my entire family. Is this considered normal dog behavior? She does lick herself a lot too but that I assumed is normal. She has no history of any abuse etc. and she’s healthy and has been to the vet. Thank you if anyone could share any insight.