Use section lines to sketch a chair in perspective

Use section lines to sketch a chair in perspective:

Hi guys!

Section lines are a very important element for product sketching, thats why i decided to do a video on this and share some tips with you. When a surface is to complicated to draw out of a box, the best thing to do is draw a couple of section lines and just go from wherever they take you, wither by intersecting them with perspective lines or with each other. Here is an example of how to apply section lines.