This episode is the Ink Primer.

The Pen Addict

Anderson Pens Ink Tool

Richard Binder’s website

3 Oysters

Bungubox

Colorverse

Kobe

KWZ

Kyoto TAG

Namiki

PenBBS

Penlux

Pilot

Platinum

Sailor

TWSBI

Taccia

Vinta Inks

Robert Oster

Standard Bindery

Van Dieman's Ink

Akkerman

Blackstone

Aurora

Callifolio

Caran d'Ache

DeAtramentis

Diamine

Ferris Wheel Press

Graf von Faber Castell

J Herbin

Kaweco

Lamy

Leonardo Officina Italiana

Montblanc

Montegrappa

Organics Studio