How to make a clear diagram
Choosing the right kind of diagram, labeling it, drawing arrows that read, and using color with care.

Swimlane diagram: what it is and how to make one
A swimlane diagram is a flowchart split into lanes, one per person, team or system, so every step shows who does it. Here is a worked example, its parts, and how to draw one.

Sankey diagram: what it is and when to use one
A Sankey diagram shows how a quantity splits and flows between stages, with each link as wide as the amount it carries. Here is how to read one, when it beats a funnel or a pie, and how to draw one.