Putting thoughts in a mind map

A mind map visualizes information or ideas. Usually, there's a main concept in the center and major concepts branching outward from it. Smaller ideas start from the major concepts, so a mind map can look like a spider web.

In this recipe, we will draw a mind map of the concepts of TeX.

How to do it...

We will use the TikZ mindmap library. Follow these steps:

1. Start with a document class:

   \documentclass{article}

2. Load the geometry package with the landscape option so that your wide mindmap will fit the page:

   \usepackage[landscape]{geometry}

3. Then, load the tikz package:

   \usepackage{tikz}

4. Next, load the mindmap TikZ library:

   \usetikzlibrary{mindmap}

5. Load the dtklogos package to get additional TeX-related logo macros:

   \usepackage{dtklogos}

6. Start the document and begin the TikZ picture:

   \begin{document}
   \begin{tikzpicture}

7. Start a path with options:

     \path [

8. Provide the mindmap option and choose the white text color:

       mindmap,
       text = white,

9. Adjust the styles for the levels of...