Publisher’s description (translated from the Italian): “Finding an analogy between a second-degree equation and everyday life, putting aside the irresistible example of the motion of a ball in free fall, is actually complicated. The total disinterest of most people toward the marvelous subject of numbers stems, most likely, from this and other dilemmas that lead to the oft-asked question from high school students, ‘but why do I have to study mathematics?’ But what if mathematics could be investigated in our everyday lives in a more simple way? Without integrals and logarithms, but bearing in mind its especially characteristic approach and the essential logic that it offers. What if the numbers and the equations were only a pretext? Climbing onto a sheet of paper wishes to be a means of explaining these diverse concepts: it is a collection of more or less classical proofs of popular mathematical knowledge observed from a new perspective, and tackled in a narrative and accessible tone, with language at times unconventional and with some stylistic experiments. It is entirely saturated with passion for the beauty of mathematics and with the hope that this passion is infectious.”