Measurements

Most of the parameters of the neutral typeface were extracted from a series of measurements of existing typefaces. Not very suitable for the actual book, here is the table with all the numbers in its entirety:

(Each parameter in this table is clickable and will open an explanatory popup window.) n-Width
 
H-Width
 
Ascender length Cap-Height Descender length Stroke Weight Curve
 
Contrast
 
Aperture size Stroke-end Angle in e Stroke-end Angle in f
AG Buch SampleAG Buch 81.8% 78.19% 135.77% 135.77% 136.15% 17.51% 63.44% 21.51% 77.81% +4° -6.5°
Documenta Sans SampleDocumenta Sans 81.81% 78.77% 162.67% 146.74% 149.72% 16.79% 60.23% 15.66% 175.95% -27.8° -19.4°
Franklin Gothic SampleFranklin Gothic 79.19% 71.43% 134.34% 135.03% 132.67% 16.48% 63.44% 26.43% 128.21% +8.5° -11.4°
Frutiger SampleFrutiger 88.5% 77.08% 147.06% 136.73% 141.18% 18.44% 59.05% 24.0% 155.32% -37.3° -19.0°
Grotesque SampleGrotesque 80.05% 77.25% 146.05% 146.05% 138.73% 17.02% 58.06% 11.25% 90.48% -6.8° -10.3°
Neue Helvetica SampleNeue Helvetica 83.0% 79.27% 138.38% 135.77% 138.58% 16.48% 60.87% 16.67% 81.18% -12.7° -17.4°
Syntax SampleSyntax 80.87% 84.27% 151.04% 142.18% 151.04% 17.33% 57.72% 30.23% 198.75%
TheSans SampleTheSans 81.67% 78.22% 146.73% 139.9% 149.55% 18.1% 61.57% 23.96% 193.33% -19.3° -11.9°
Trade Gothic SampleTrade Gothic 72.74% 70.01% 138.84% 138.84% 136.92% 13.86% 61.16% 0% 168.06% +1.7° -20.9°
Univers SampleUnivers 86.74% 75.21% 143.01% 143.21% 137.86% 18.66% 63.0% 28.57% 81.91% -6.4° -3.8°
a neutral typefaceAverage: a neutral typeface 81.59% 76.97% 144.83% 140.2% 141.24% 16.95% 60.53% 19.83% 135.04% -9.5° -12.1°