Step 1: Find a game you would like to create a guide on.
Step 2: Click the "Guides" option.
Step 3: Scroll down and click "Create Guide"
Step 4: Write a title for your guide.
Step 5: Choose a picture for your guide.
Step 6: Describe your guide.
Step 7: Choose some categories and languages for your guide.
Step 8: Scroll down and click the box that says "I am the original creator of this guide, or I have legal authorization from the guide's creator to post this.
Step 9: Click the button that says "Save and Continue"
Step 10: Click the button that says "Add a section" under "Guide Contents"
Step 11: Write your guide.
Step 12: Click on "Preview Guide" at the top of your screen.
Step 13: Publish your guide.

Add silly images to your guide if you want like this one: