It's about stroke-weight variation, not memorizing a font
Brush lettering is less about memorizing a pretty handwriting style and more about developing a feel for how varying pressure changes stroke thickness. Just practicing the one principle β thick on downstrokes, thin on upstrokes β can noticeably change the overall impression of your lettering.
A different flavor of hobby than traditional calligraphy
Even though both use a brush-like tool, brush pen lettering tends to allow much more personal, expressive freedom compared to traditional calligraphy, which follows established scripts and conventions rooted in a particular writing tradition. If you're curious how traditional script styles are classified, that's an interesting rabbit hole to explore separately.
Frequently Asked Questions
Should I start with a brush pen or a fountain pen?
A brush pen is recommended if you want the signature thick-thin contrast of lettering. A fountain pen doesn't vary much in width with pressure, so while it's good for practicing neat, structured handwriting, it has limits for lettering-style expression.
The ink keeps bleeding into the paper. What should I do?
Regular copy paper absorbs ink quickly and bleeds easily, so switching to dedicated lettering practice paper or a paper with a smoother surface helps reduce bleeding.