When you think of ballpoint pens, your mind probably goes to office supplies, not great works of art. But even the lowliest and most ubiquitous of writing utensils can make breathtaking masterpieces ...

Researchers at the McKelvey School of Engineering at Washington University in St. Louis have developed ink pens that allow anyone to handwrite flexible, stretchable optoelectronic devices on everyday ...

This video shows the process of creating an anime-style illustration using a multi-color ballpoint pen. It explores how to use limited color options creatively, with a focus on line control, layering, ...