You can actually google "font coding" and find several websites that offer free fonts. typekit.com is an easy way to change the font on your website, really great for those that don't have much experience with coding. you'll need to edit the stylesheet of your wordpress template and basically paste in font codes provided.
Take a look at some of my themes. They all have a framework that allows you to change absolutely every feature, font, color, a:hover (you name it)... from the backend.. no coding required. All you need to do is install a theme and check out the 'Themes Panel' where it provides you with all the options for complete customization you need.