# Spelling All documentation is written in U.S. English # Grammar ## Comma And **In lists**, the last element is mentioned using the word 'and', *without* a comma. **When joining independent clauses**, keep a comma before the word 'and'. Usually, this comma can be left out for short clauses, but we keep them in for consistency. **Good examples:** > The first, second and last items. > > Action X was performed, and this had Y impact. # Figures Non-raster figures are preferred over rasterized figures (where applicable). Please note that LaTeX does not support SVG images, and these need to be converted to PDF (e.g. using `svg2pdf` on linux). Raster images should only be used when the source is already in a raster format (e.g. for photos) or when otherwise impractical.