Figure 7.5 (Error-bar graphs of T1 to T2 LEQ Factor ESns and CIs (N = 3,640)) from Neill, J. T. (2008). Enhancing life effectiveness: The impacts of outdoor education programs. Unpublished doctoral dissertation, Faculty of Education, University of Western Sydney, NSW, Australia. https://commons.wikimedia.org/wiki/File:Error-bar_graphs_of_outdoor_education_effect_sizes_from_Neill_2008.png
Bullet graphs as defined by Steven Few. Anthony Starks. https://www.flickr.com/photos/ajstarks/5914139179/ . Attribution-NonCommercial 2.0 Generic (CC BY-NC 2.0) .
Testing out Tom's Planner. Peta Hopkins. https://www.flickr.com/photos/petahopkins/4095032704 . Attribution-NonCommercial-NoDerivs 2.0 Generic (CC BY-NC-ND 2.0) .
An easy technique for creating a floating column chart in Excel. Susan Harkins. https://www.techrepublic.com/blog/windows-and-office/an-easy-technique-for-creating-a-floating-column-chart-in-excel/