Last years popularity was found by the theme of "large data" (big data). But many people are not able to manage even with the small volume of data - and, consequently, the self-weighted decision is unable to accept.From a book you know, how to collect, classify, analyse data| to use them in-process| to recognize garbling and right to interpret information.This book needs to you, if you want to learn - or to teach it employees - to make decision on the basis of exact information, but not doubtful prognoses.In Russian language published first.