To draw the “Tip of the Iceberg” layout, download the Tip-of-the-iceberg PowerPoint slide.
(But be careful – this metaphor is overused! More than a decade ago a young Smart Alec named Martin Burch posted this on his blog).
Free free to add further suggestions for how to draw the “Tip of the Iceberg” layout – or examples of its successful (and hopefully not excessive) use – in the Comments section below.