This document provides instructions for creating a Tumblr blog and making a first post. It outlines 9 steps: 1) Signing up for Tumblr, 2) Customizing the blog title, description, and theme, 3) Navigating to the dashboard to start a new post, 4) Adding a title and text to the post, 5) Choosing publishing options, 6) Adding relevant tags, 7) Previewing the post, and 8) Publishing the post to go live on the blog.