1. A scientific poster should communicate research findings visually and concisely. It should highlight key findings and attract viewers from a distance. 2. Effective posters use a clear layout with sections arranged from top left to bottom right. Text should be brief and graphics should support the message. Less than 30% of the poster should be text. 3. Important elements include the title, author names, introduction/abstract, objectives, methods, results, conclusions, and references. Font sizes should be large enough to read from 3 feet away.