Try experimenting with different colours of ballpoint pen to create layers of texture. Light-coloured felt tips can easily pick up darker colours from a drawing surface. This can be avoided by ...

"After that day, I never stopped drawing. Unlike most children, I didn't start by scribbling; I just instinctively drew straight away." A ballpoint pen drawing of the famous painting “Girl with ...

"We had the inks already, so it was a natural transition to take the technology we had already developed and modify it to work in regular ballpoint pens where it could be cheap and accessible to all." ...