Graphics, photographs, diagrams, etc., are very important components of your poster. They will add interesting visuals to the poster, helping you to get your message across.
Text size font type are a very important aspects when designing a poster. They will determine whether your audience will be able to read your poster with ease.
If not, all your hard work was for nothing. It is not easy to read words that are in capital letters, e.g. COMMUNICATION STYLES vs Communication styles
To attract your audience, they must be able to read your poster from a distance (1 - 3m), therefore font size is extremely important. These are recommended font sizes to use: