For this exercise I drew a thumbnail drawing of my favourite coffee cup roughly 10 cm square in my small A5 sketchbook, which I’ve barely put to use so was good to fill a page or 2. Once I had finished the thumbnail drawing I drew a grid of 2 cm squares with an HB pencil over my thumbnail sketch.
In my A4 sketchbook I drew 3 cm squares, deciding they were a perfect size for this object on this size paper, with a larger more detailed composition I would have probably needed smaller squares in both sketchbooks.
To make it easier for myself to identify which squares I would be drawing in I labelled the squares with letters down the left hand side and numbers across the top. However the drawing was quite low in my A5 sketchbook so in my A4 sketchbook I started at B instead of A lifting the drawing up 1 square.
I loved this ‘Enlarging an Existing Image’ exercise, it was like piecing together a jigsaw puzzle but a hell of a lot easier and as the squares weren’t that big quite easy to judge where a line curves or which point of the grid they would meet. Admittedly I did do a little bit of rubbing out with an eraser but not that much.
My Drawing Course 