Unlike a tutorial that shows a finished drawing in 5 minutes, this book shows the messy middle . You see the construction lines, the guides, the wrong guesses erased (or left visible for charm), and the final inking.
Forget the rigid architectural rulers. This book teaches "eyeballing" perspective for designers. You will learn 1-point, 2-point, and 3-point perspective specifically for products —meaning a toaster or a shoe, not just a box. sketching the basics koos eissen pdf