Sometimes it's easier or more interesting to describe something using pictures or even videos. This guide explains how you can add images, videos, links, polls, emojis, and files into the posts you write.
When you start to create or reply to a topic, you see a menu of icons underneath the box where you input your text. These allow you to format your text, for example making it bold or adding a bulleted list.
These also allow you to add things besides simple text into your post.
If you want to add videos you'll need to upload them to a video hosting service (like YouTube) before you can embed them into a post.
Polls can only be added when you create a topic, you can't put a poll in a reply.