title: max value of a list (of string items)
body: <pre><code>Heroes =['Superman','Batman','Dudley Do-Right','Luke Skywalker']
  max(Heroes)
  'Superman'
  </code></pre>
  
  <p>Can someone please explain why the above result is 'Superman' not 'Dudley Do-Right'?</p>
  
  <p><code>len(Heroes[0])</code> is 8</p>
  
  <p><code>len(Heroes[2])</code> is 15</p>
  
  <p>I'm confused.</p>