Graph literacy is one of the key analytical skills, tested during your case interview. To be more specific, it relates to your ability to obtain meaning from information presented graphically.
Which abilities should you develop?
- The ability to read the data, that is, to find specific information in the graph
- The ability to find relationships between the data points
- The ability to look beyond the data and make predictions and inferences
What types of graphs you could encounter?
- Line Graphs
- Bar Graphs
- Trellis Bar Graphs
- Stacked Bar Graphs
- Stacked Area Charts
- Pie Charts
- Multi-level Pie Charts
- Mekko Charts
- Population Pyramids
- Spider Charts
- Control Charts
- Scatter Plots
- Function Plots
What insights should you be able to generate based on the graph?
- Present: what you can see on the graph + limitations of the graph (what your can not see)
- Past: what could have cause the trend that on the graph?
- Future: how can this trend develop in future?
Where you can find graphs to interpret:
- McKinsey, BCG, Bain insights and research portals
- Public company reports
- Tests (e.g. The Graphic Literacy Assessment)