The book presents an INNOVATIVE INSTRUMENT FOR JURISTS, which makes it possible to identify the most suitable interpretative approach. The model, which is being continuously developed at the Centro Studi Diritto Avanzato (Centre of Studies for Advanced Law), has already been presented in Italy at the Camera dei Deputati (Chamber of Deputies) as well as at the Italian Courts and Universities; the 2017 Edition of the book was an Amazon best seller; it has been described as "REVOLUTIONARY" by numerous newspapers. The model is directed at systematizing interpretative criteria by means of ALGOTITHMIC REASONING, and can also be used in COMMON LAW SYSTEMS. No Jurist will be the same again. The 2018 Italian Edition is presented by Stefano SCHIRÒ (President of the First Civil Section of the Italian Supreme Court of Cassation). The English version was translated by Jasna GERIC (translator, interpreter and language trainer).