Presenting numbers

This branch covers presenting quantitative information, divided by the form the reader encounters: units and notation, reported precision, tables and graphs. Statistical meaning and methods, and visual communication beyond data displays, belong to neighbouring branches.

• Numbers that measure: units, notation and change — units, scientific and logarithmic notation, fractions, percentage and fold changes, and direction with negative values
• Significant digits and reported precision — measurement uncertainty, significant digits, calculation, rounding, planning precision and the consequences of inappropriate precision
• Tables for evidence and explanation — purposes, structure, headings, alignment, self-contained displays, comparisons, captions and production
• Figures and graphs — exploration and explanation, visual encoding, choice of form, observations and summaries, axes, scales, contrast and captions