Great Dynamics 365 for Field Service Tutorials (by Microsoft)
https://www.youtube.com/playlist?list=PLLqieRfraDcoTcFSM8AbHmmNl8JbLRAU6

Dynamics 365 for Field Service demo videos (by Microsoft)
Short 2-3 minute Field Service marketing videos.
https://dynamics.microsoft.com/en-us/field-service/demo/