Download the sheets and start drawing. Draw directly on the sheets except where you are told to draw in an A4 sketchbook, which you should always have to exercise your emerging skills.
Use the drawing films to help you; for example if you watch Film 1 you will learn to draw in Oblique projection, which you can practice on the sheets in the Oblique chapter. Make additional doodles and quick sketches on the sheets as you please.
I have never been able to draw!
That’s why the first sketches are just simple doodles. Because the first stage is to overcome the perceptual barriers that inhibit the flow between your mind’s eye and your hand. You will start by making simple “thumbnail” sketches that get progressively more challenging.
Being able to draw is like having a second language
That’s why you will be given a simple drawing tip, or technique, and then you will be encouraged to improvise with it, as you would in a conversation.
At the same time you will find your own ways to extend the scope of what you can express in two and three dimensions.
As you progress through the sheets your drawings will grow in credibility, and as your confidence increases you will find your voice.