Mathematics does not only exist in textbooks; it is in every sip of wine, in every church, and in every beetle. Pedro Miana, together with a team of leading contemporary mathematicians, reveals how numerical patterns and equations silently sustain the world we live in. The book immerses us in a universe where mathematics is present at every moment. From GPS navigation—based on complex mathematical models—to the algorithms that determine what we see on our social media, numbers operate discreetly but with extraordinary power. Throughout its chapters, we will discover how mathematical precision transforms a simple grape into an exceptional wine by precisely controlling its fermentation, and we will delve into chaos theory, where small variations generate unpredictable results, although chaos does not always imply disorder. The ingenious “pigeonhole problem” will reveal why certain coincidences are not chance but inevitable mathematical certainty. We will also explore the infinite number pi, the essentiality of mathematics in modern medicine, how nature has used geometry since the beginning of time, and how every sound, image, or taste is translated into equations that our brain processes. “Mathematics of Everyday Life” is a celebration of how human ingenuity has turned numerical abstractions into tools for understanding our environment. Essential reading for anyone who wants to discover the surprising mathematical beauty that, invisible but omnipresent, shapes our world.