What are you reading right now?

The logic is perfectly obvious. What do books, newspapers, and magazines have in common? The fact that they can be read. If you don't know about this property, you can analyze the topic title and compare it with the rest of the content of the first post. So: rap can also be read, which means I can write in this topic about how I listen to rap!

Added after 41 seconds
But rap can be printed!