First go to the main page, go to the section Author in the page menu or to this link Content Creation
After this you will Find a new empty window:
Users Of the site have the Service of Infinite Space to upload files, Books, Videos and Photos. Click the + Symbol above the Arrow. ⬆ (Image 3)
Create your content, share it, and make your copyright. Want to charge for it? join and start posting.
Terrifying, isn´t it? infinite!
Image 2: Clicking the + Symbol
Image 3 Uploading content
At the end, publish your post and thats it! You are now a WordPress Author!