Pie chart
Parts of a single whole, when there are only a few slices.
Insights
30 different types of charts & diagrams.
A simple visual cheat sheet for anyone building a presentation. Use conceptual diagrams to illustrate an idea or a process — and pick the one that makes your point fastest. Our favourite is still the tree map.
The full list
Every type, and what it’s best for.
Most slides fail because the data is poured into the wrong shape. The chart isn’t decoration — it’s the argument. Here’s each of the 30 with a quick note on when to reach for it.
Venn diagram
Overlap and shared ground between two or three sets.
Concentric diagram
Layers that nest or build outward from a core idea.
Circular chart
A cycle or stage-based loop with no clear start or end.
Bubble chart
Three dimensions at once — x, y and size — in one view.
Bubble race chart
How ranked values change and overtake over time.
Line chart
A trend over time — the workhorse of change.
Area chart
A trend over time with volume or cumulative weight.
Scatter plot
Correlation and clusters between two variables.
Sunburst chart
Hierarchy and proportion in a single radial view.
Fan chart
A forecast with a widening range of uncertainty.
Windrose chart
Frequency or magnitude across directions or categories.
Bar chart
Comparing values across categories — clear and honest.
Tape diagram
Ratios and part-to-part relationships, visually.
Gantt diagram
Tasks, timelines and dependencies in a project.
Tree map
Proportion within a hierarchy — dense data, small space.
Grid
A matrix that maps items across two dimensions.
Periodic table
A structured catalogue of many categorised items.
Arc diagram
Connections along a single line of nodes.
Sankey chart
Flow and where volume moves, splits or is lost.
Chord chart
Relationships and flows between many entities at once.
Radar chart
One subject scored across several attributes.
Polar grid
Values plotted by angle and distance from a centre.
Spiral graph
Long time series or repeating cycles, wound inward.
Timeline
Events in sequence — a clear before and after.
Flow chart
A process, step by step, with branches and decisions.
Binary tree
Hierarchical splits, each branching into two.
Mind map
Ideas radiating out from a single central concept.
Decision tree
Choices and outcomes mapped along yes / no paths.
Block scheme
A system shown as connected functional blocks.
Turn data into a decision
Picking the chart is the easy part.
The hard part is the story the data is meant to tell. That’s what we do — turn complex information into presentations that move people to a decision.