DebugPoint published a tutorial about using journalctl to view and analyze systemd logs.

How to use journalctl to View and Analyze Systemd Logs [With Examples]

This guide explains the basics of the journalctl utility of Systemd and its various commands. You can use these commands for troubleshooting desktop and server logs in Linux. This is how you can use journalctl to view and analyze Systemd Logs with different examples. 

How to use journalctl to View and Analyze Systemd Logs [With Examples]