Description and logo at the very top of browser?
Site title - This is set with HTML meta tags and not really anything to do with Craft specifically. It depends how you "switched" from wordpress to Craft. Inside your document head, you need to include a title tag, like:

&lt;!DOCTYPE html&gt;
&lt;html xmlns="http://www.w3.org/1999/xhtml" lang="en-US"&gt;
&lt;head&gt;
    &lt;title&gt;Website title goes here&lt;/title&gt;
&lt;/head&gt;
&lt;body&gt;


You can set this automatically by doing the following:

&lt;title&gt;{{ entry.title }}&lt;/title&gt;


Favicon (logo) - Upload your .ico file to the /public_html directory.