Gel Pens for Coloring Books: A Practical Guide for Adult Colourists
If you have ever stared at a colouring page and wondered whether gel pens would actually work — or which ones won't bleed through your paper — this guide covers everything you need. From pigment quality and tip sizes to the brands colourists actually reach for, you will finish knowing exactly what to buy and how to use it.
haunh12 min read