Defined by wikipedia as:
A bar chart or bar graph is a chart that presents grouped data with rectangular bars with lengths proportional to the values that they represent. The bars can be plotted vertically or horizontally. A vertical bar chart is sometimes called a column bar chart.
No real need to labour this subject too much, as it’s a default chart type which doesn’t receive much coverage in the community, but is straight forward to create.
Andy Kriebel shares a nice video showing how to separate dimensions in Tableau bar charts with blank space:
And he uploaded this video in September 2016, looking at combination charts with overlapping bars:
Emma Whyte at informationlab.co.uk takes a look at Stacked Bars:
Chris Love (blog post below) talks about bar chart formatting:
Tableau uploaded a new video in July 2016 looking at general basic visualisations in Tableau, but focusing on bars and stacked bars:
A video from Data Zombiez was added to YouTube in May 2017:
The blog post associated with that YouTube video from Andy is linked below:
I love to refer to the blog sections on interworks.com and theinformationlab.co.uk. They always contain great reference tools, and both deliver on bar charts.
Chris Love at The Information Lab then looks specifically at formatting bar charts (the video is linked above):
Curtis Harris posted this tip to show a Grand Total effectively on a Bar chart:
Adam McCann devised an exiting new combination of bar charts and sparklines in February 2017:
To complete the clean sweep, the example workbook I’m including is also from Andy Kriebel. I include it as it contains four uses for bar charts, including a nice dual-axis bar / circle chart.