Who would have thought that a simple cone-shaped marker could have such a rich and mysterious history? These seemingly ordinary objects, known by various names such as road cones, safety cones, or construction cones, hold secrets waiting to be unravelled. From ancient civilisations to modern-day innovations, with a mix of history, curiosity, and a touch of surrealism, this book takes you on a journey that blurs the lines between reality and imagination. Halfway between an art project and a visual essay, SerraGlia aims to encourage us to remain vigilant to our surroundings: how can we critically observe and evaluate what we encounter every day? The book includes also an original essay by Dr. Everett Konemann, PhD, Professor of Traffic Studies and Human Behavior at Coney Island University.