It can be challenging for designers to communicate to non-designers the amount of work that can go into a good design. This peek into an event poster design is a great opportunity to illustrate part of the design process.
Designer Shelby White, aka Wanken, has generously shared a screen shot, or more aptly, the many screen shots that it took to show the number of layers in the file: 90 layers. File size: 618MB.