If you use your Mac professionally, you most likely also work with fonts.
Fonts are essential for designs and professional print.
And if corrupt, they can cause issues, even crash applications upon launch. Or change your output.
One of the best articles I have ever read, summarizing font usage, font management and how to solve font issues is this article by Kurt Lang. I feel it is a must-read for everyone:
Kurt has been a frequent poster on Apple’s forums and is constantly updating his article. If you benefit from his article, please consider making a small contribution via PayPal.
Both an engineer and a layout artist, Matthias bridges the gap between technology and people. Before joining Quark in 1997, Matthias pioneered print, Web, and multimedia products for multiple German publishing companies. He is an active participant in design and publishing communities and represented Quark in the Ghent PDF Workgroup.
From 1997 until 2019 Matthias played a central role in shaping Quark’s desktop, mobile and enterprise software. From February 2014 until January 2019 he headed Quark’s Desktop Publishing business unit; and was therefore responsible for QuarkXPress.
Matthias does not work for Quark anymore. If you want to connect with him, please visit his LinkedIn profile on https://www.linkedin.com/in/mguenther/