For my next lesson I learned to draw foreshortened squares. Sincerely I thought this was a no brainer, but I was wrong. I've drawn before. I kind of winged this one only to realize I had done it horribly. Seriously, if I can not sound like a salesman, you should buy this book if you are a loser turned winner (fingers crossed) like me. My lines were off and apparently you have to draw top lines parallel to bottom lines. Who knew? Im even looking around at every day things and seeing that its true with every standing object. Tables, counters, boxes, and beds... the visuals you kind of stupidly take for granted. I mean, yes, I think we all know this about our everyday possessions, but drawing a simple cube properly is a very different thing.