The document provides 10 features that make a good poster:
1. Clearly show what the poster is promoting in an appealing and easy to understand way.
2. Sell the product or message quickly as people have short attention spans.
3. Use a short, catchy title or name that is easy for people to remember.
4. Style and design the poster to match the theme and message in a way that grabs the target audience.
5. Consider the target audience and design the poster with what they like in mind.