International Master Andrew Martin suggests beginning players study the main lines of openings — NOT quick fixes, shortcuts, and opening “systems.” Here’s his video on the Ruy Lopez (C99), aka The Spanish Game, using a game from Corus 2005 between Peter Leko as white and Lazaro Bruzon as black.
I really like IM Martin’s videos and I highly recommend subscribing to his YouTube channel.
Tallahassee Chess Blog 