Adrian Cantrill is a technical course creator who focuses currently on AWS certifications. He's a passionate technical architect and places high importance on actual learning and understanding IT, in particular cloud technology for entrants and veterans in the industry alike.
He has high passrates from students whom have taken his courses and occasionally publishes lessons for the general public to allow greater access to fundamental tech knowledge that every aspiring or experienced engineer should know.

His full course portfolio can be found here: https://learn.cantrill.io