The deeper you go in to online marketing, especially through social and email channels, you start to hear about split testing and A/B testing. Both describe essentially the same process, which in a nutshell is testing which method is better, usually through headlines. But it can also involve the colors of your site, the placement of copy and images, or the type of email opt-in you choose.
Basically, you can A/B test anything.
The friendly folks at Buffer noticed this was an issue for people online, and took it upon themselves to clarify the process and give several case studies of how they A/B test at Buffer. Kevan Lee includes examples from tweeting headlines, the Hello bar, post scheduling, and more. I thought it was a great post and wanted to give it the sketchnote treatment. Enjoy!