If you happen to be very into typography, this font pairing guide by Guy Kawasaki is worth looking into. In a recent post on the Canva blog, the online design tool's 'Chief Evangelist' offers The Ultimate Guide to Font Pairing Like a Pro including tips and tricks.
The graphic design guide includes a glossary of typographic terminology for those who are not professional designers yet, but are interested in learning more about the craft. In addition to providing several examples, the guide goes into detail about why some fonts are used in different situations. The four different examples are intended to make your designs beautiful, with "simple and effective type application."
If font matchmaking and happy typographic marriages are of interest to you, this guide is a must see.