Stay focused on your message. And keep it simple!!
Simple messages are more memorable.
Details distract from the main point, and can be supplied in person as needed.
Create a mock-up poster focused on your main message.
Ask yourself which details are absolutely essential
for conveying your message. The most common problem is too much
focus on methods. [ An exception is if your poster is about a new method. ]
Omit anything that is not essential.
Edit text carefully - simplify verbiage, reduce sentence complexity.
>>Consider the alternatives>>