Honest, plain-English pen guidance · written and fact-checked by the Nibhaven team
Nibhaven fountain pens, minus the intimidation

How we research

Every Nibhaven guide follows the same process, and we believe you deserve to see it.

1. Primary sources first

We start with manufacturer documentation and specifications: nib size charts, converter compatibility tables, ink safety data, paper weights. Where a fact matters, it is traced to a source you can check in the Sources list at the end of each article.

2. Disagreements are adjudicated, not averaged

Pen lore is full of conflicting numbers. When two credible sources disagree, we do not silently pick one or split the difference: the guide names the disagreement and explains which figure we trust and why.

3. Researched at scale, judged by humans

We use modern research tools to work at scale. Every article is then reviewed by a human editor who checks facts against the recorded sources, removes anything we cannot stand behind, and is accountable for the result.

4. Corrections

If you find an error, write to us via the contact page. We fix mistakes quickly and note significant updates on the affected guide.