A pen.

Rotring

Basically really good, but it doesn’t dry all that fast. Well, it’s almost immediately “touch dry,” but no matter how long you wait, if you paint over it with acrylics, the ink still shows through — even though the manufacturer claims it’s waterproof once dry. Go figure. That said, if you sketch with a pencil …

Markers

Most of the markers I reviewed have water based ink, some are alcohol based. Even if the latter, they are very neutral in smell. I mostly use sizes 0.5 – 0.8 for drawing, but for filling in the larger areas I naturally try to use the larger ones, 0.9 – 1.2. I also noticed that …