Australian Matt Parker (born 1980) began as a mathematics teacher, and then moved to England and began to talk about his favorite subject on the BBC channel and in the Guardian newspaper, and then came up with a format of public lectures on which he talks about complex problems of mathematics very clearly and with a large dose of humor. Matt's performances have consistently been hugely successful and he is widely known in the showbiz world as "Stand-Up Mathematician." The book that you hold in your hands is designed in the same style: the author knows how to talk simply about complex things, while not failing anywhere against scientific accuracy. And even the reader, infinitely far from numbers, forms and formulas, is unlikely to resist the irresistible charm of mathematics.