1. The document discusses planning menu flow and interface design for games. It emphasizes clarifying needs, distributing work, and getting approval to save time.
2. User-centric design is important, finding out what users think of other interfaces and designing around their preferences. Flowcharts can help identify how users move between screens to avoid dead ends.
3. The document recommends several flowchart techniques and software tools to plan and mock up interface flows, including 37signals' simple approach using boxes and arrows to show screen options and links.