This here is a random collection of things; maybe useful for others, maybe not.
Mathematics
- Einleitung zu Éléments de géométrie algébrique
My German translation of the excellent introduction to the 1971 Springer edition of EGA. - Mumford’s picture of Spec(ℤ[X])
This LaTeX version is due to Pieter Belmans. - Math genealogy graph
My math genealogy graph and infos how to get it - Hironaka’s example of a complete but non-projective variety
A write-up of Hironaka's famous example