Reference Tables
Quick-reference tables, charts and standards.
Primary Colour Mixing Chart
What two colours make when mixed — pigment vs light mixing, complementary pairs, warm vs cool primaries.
Standard Canvas & Paper Sizes
UK canvas sizes, A-series paper sizes (A0–A6) and US canvas sizes for comparison.
Pencil Grade Hardness Scale
Full 9H to 9B grading scale with recommended uses for technical drawing, sketching and shading.
Picture Frame & Mount Sizes Guide
Standard UK frame sizes, recommended mount borders, aperture calculations and glass types.