https://www.skillshare.com/classes/4-Exotic-Patterns-in-Adobe-Illustrator-A-Graphic-Design-for-Lunch%E2%84%A2-Class/1345936852
Graphic Design for Lunch™ is a series of short video courses you can study in bite size pieces such as at lunchtime. In this course you’ll learn to make four exotic pattterns in Illustrator. The class is suitable for all versions of Illustrator. The patterns are the Quatrefoil, Barbed Quatrefoil, Morroccan Trellis and a Layered Diamond pattern. This is one of the patterns we will make: