Charts that omit relevant data are also misleading

A time range can be carefully chosen to exclude the impact of a major event right outside it.And picking specific data points can hide important changes in between.Even when there's nothing wrong with the graph itself,leaving out relevant data can give a misleading impression.This chart of how many people watch the Super Bowl each year makes it look like the event's popularity is exploding.But it's not accounting for population growth.The ratings have actually held steady because while the number of football fans has increased,their share of overall viewership has not.