Tips for Throw Cushions on a Sectional Sofa

I am not by any means an Interior decorator but I love decorating a home and I am trying to learn the way to do but I like a pro. 

I have been puzzled on the right way to layer my cushion covers on my sectional and if I am selling cushion covers, I should know right.

So I found this video that I would like to share with you and hopefully it helps you too. 

Still adding your personal touch is ok.