/ic/ - Artwork/Critique

>>4980092
Except... they aren't? They are very specific methods to make sure perspective rules are precisely respected in drawings. Particularly aimed towards hard surface, architectural and mechanical design. Pic related is the content one should expect from the book. It has nothing to do with thought process and all to do with very accurate relative measurements and guiding lines. You're certainly not thinking of pic related when eyeballing something of similar nature.