The publication „Znalectví“, written by Lukáš Křístek, deals with expert activities in general. It deals with the principles on which modern expert activity is based. On the jurisprudence it shows how these principles are currently interpreted. The work is processed according to the current state of knowledge, there are also many fresh news that could not yet be captured in other recent works. You can buy the book online at Wolters Kluwer.