It's hard to imagine an application that doesn't present any data to its user at all. In fact, designing a user interface is largely a question of establishing how best to expose the internal data representation of an application to the user. Data presentation can range from the very simple, such as a single text field, to more advanced but standard controls such as NSTableView and NSOutlineView, right up to completely custom visualizations and graphs. In this presentation, Drew McCormack takes a look at the resources available to a Cocoa developer for the presentation of data, and the circumstances in which each one is suitable. The question of when to use standard controls and when to search for a custom solution is also be addressed.