The Paradox Zentangle is one of my favourite doodles because it is simple to draw, very effective and you can easily create lots of different variations. Take a look at this tutorial video to see how drawing straight lines can produce the appearance of curves.

Check out my other Paradox Zentangle videos. All you need to join in is a Sharpie.
No.1:    • Drawing the Paradox Zentangle #1  
No.2:    • Drawing the Paradox Zentangle #2  

Subscribe for more doodles!