On this page we have some videos showing how to take screen shots
HOW TO TAKE SCREEN SHOOTS GUIDE CLICK ON ADREES TO SEE.
LINKS TO PROGRAMS ALSO UNDER VIDEO FOR FREE WITH LIFE TIME KEY
JUST DOWNLOAD AND INSTALL AND INSERT KEY.
https://www.youtube.com/watch?v=7FQH4M9HYGw
how to take screenshot on mac
https://www.youtube.com/watch?v=lLAY4BpZ33I