Process flow meets the London Underground

Harry Beck's 1933 London Underground map is an info design classic (thanks Erin). Martin Kay has used the tube map's visual language for flow diagrams. The results are luscious and engaging in a way that vanilla boxes and arrows can't rival. More than just sample deliverables, Martin offers a short explanation, a 7 page guide on creating your own, and a PowerPoint template of map components. (thanks pencil & paper)

Of course, with any deliverable, there's usually the tradeoff between making it quickly and making it pretty. For the most part, I prefer fast diagrams over pretty. That works great for internal team communication, or for clients who are directly engaged in the process as team members. Reserve the effort of pretty deliverables for final versions or other things that need to do a sales job within the organization. The selling power of a large format color diagram shouldn't be overlooked, even if the pencil sketch version tells the same story.