This document discusses how to wire up an application in Blend by walking through navigation, sample data, layout, user controls, real data, and dependency properties. It emphasizes getting the application structure and navigation correct during prototyping before coding. Specific techniques covered include importing designs from Expression Design and Photoshop, using sample data as a placeholder, exposing events and properties from user controls, and generating dependency properties. The goal is to facilitate collaboration between designers and developers in Blend.