title: Learn how to create LaTeX styles?
body: <p>How can I learn how to create LaTeX styles?</p>
  
  <p>The normal way when creating a LaTeX document is to start with something like.</p>
  
  <pre><code>\documentclass[a4paper]{report}
  \documentclass[a4paper]{article}
  \documentclass[a4paper]{letter}
  </code></pre>
  
  <p>And that seems to call a .cls (and a .sty) file like letter.cls, 
  that is controlling the actual layout of the document.</p>
  
  <p>Is there a good way to learn how to create this type of "latex style files"?
  Has someone created a howto, step-by-step or simply a good manual on the topic?</p>
  
  <p>Thanks
  Johan</p>
  
  <hr>
  
  <p><strong>update</strong>: </p>
  
  <p>I guess that tex.stackexchange.com is the answer on how to continue learning LaTeX.
  With questions like this: <a href="https://tex.stackexchange.com/questions/528/style-class-tutorials">https://tex.stackexchange.com/questions/528/style-class-tutorials</a></p>