These are the inks that I currently use. One of the best findings the last year is that one can use a broad calligraphy nib with a sunshine yellow ink (or any other ink of a light and bright hue) as a highlighter pen. Much nicer – and more functional as well – than ugly fluorescent highlighter colours in ugly pens that always dries out fast – even if you cap them. My faves among these are the Sunshine Yellow, the Monaco Red, the Royal Blue and the Mediterranean Blue. Lovely colours for everyday use.
