Optical illusions challenge the way we see the world, turning simple drawings into 3D designs that make us look twice! In this class, learners will draw different illusions each week. Projects may include drawings like a 3D hand illusion, op art patterns that seem to move, undulating patterns, and impossible shapes that couldn't exist in real life. By the end of class, students will have a collection of amazing optical illusions they've created themselves—guaranteed to impress friends and family. **Materials needed**: drawing paper, pencil, a black marker, something to add color, and a ruler or straightedge (optional)