Follow few simple steps shown as belowto make columns in google docs:-
Step 1. Simply start by opening a new Google Docs document from ‘file’ menu to make brochure using google docs.
Step 2. You will see untitled document page, Write your text on page.
Step 3. Go to the “format” menu , select the columns as per your choice by drag and click your mouse icon over the square, below in the screenshot you can see your text divided into two columns.
Step 4. This is the easiest way of adding columns in google docs.