Do other people exist?

Now this will sound self centered, but this is not the case. The question is if you know only your own perception how do you know other perception truley exist or are they just creations of you own mind? If anyone awnsers this is myself responding to me? Is all art a reflection of me. Or, as being one of many, am I a reflection of all art? This is an old question and i know can not truley be awnsered but i'm looking for some of my opions on it... (lol)