How to apply font styles in the Wiki / Blog WYSIWYG Editor

In wiki and other places, I do not see a way to control font other than Bold and Italic. Is there some way to specify font and paragraph spacing? When I copy text from emails, I get different fonts and cant control it inside the WIKI editor.

Do have a look at the styles drop down - this will give you preformatted styling for size, and other attributes. 

We do not have font, size control directly by end - users, by design. This is to ensure font compliance across all content. Further styles can be added for you, as a customization in the styles drop down. You can add them yourself as well, if you want, in the Visual Editor settings in the cotrol panel - but a little bit of tech knowledge is required, as this uses CSS based styling.