Thanks for the Rep! I'm a newbie, so it is very much appreciated!

The print screen button is usually found on PC keyboards, don't know if it is on Mac. Can be in different locations on different keyboards, but it is usually found either somewhere near navigation keys ("home," "end", "page down" etc.) or else with the command keys ("break," "scroll lock" etc.) Sometimes shares a key with another function, can be abbreviated: Prt Scr, Print Scrn, etc. Hope that helped!