Identify the peaks, which are the tallest clusters of bars. The peaks represent the most common values. Assess the spread of your sample to understand how much your data varies.
For example, in the following histogram of customer wait times, the peak of the data occurs at about 6 minutes. The data spread is from about 2 minutes to 12 minutes.
Investigate any surprising or undesirable characteristics on the histogram. For example, the histogram of customer wait times showed a spread that is wider than expected. An investigation revealed that a software update to the computers caused delays in customer wait times.