Óscar Pérez is an entrepreneur and tech CEO.

For years, he moved between boardrooms, stages, and airports around the world, organizing international conferences in New York, Los Angeles, San Francisco, Tokyo, Toronto, Amsterdam, London, Berlin, and Paris, and working with companies such as Google, Microsoft, and Adobe.

He founded Awwwards, the platform that recognizes the best web design in the world, built it into an international company, and later sold it.

Along the way, he learned something more valuable than prestige or connections: how people who truly understand money think and make decisions, and what separates lasting wealth from its mere appearance.

Those are the rules that shaped his own path, and the ones he now shares through Oliver’s story in Money in Check.