For accessibility to become embedded in our everyday thinking and world, we all need to realize the role we all can play in accessibility. We need to incorporate accessibility into workflows and considerations. Try to step back and think "is X accessible? is there a way I can make Y accessible?" Ensuring accessibility does not need to be part of a person's job description or a person's personal experience and life to become something all people can participate in.
This guide covers why accessibility matters, web guidelines and describes the main components of accessibility.