"Knowledge of Meanings" is a new, fundamentally revised edition of "Conversations with Dzhemal," a book that contains all television programs on the Radio MediaMatrix channel of the same name. The issues of these programs were hosted by the channel's journalist Oleg Druzhbinsky. The broadcasts began recording in January and ended in October 2016. Almost every week, on one particular day, Heydar Dzhemal went on the air to reveal to one degree or another for an hour the topic that he himself determined for this program. In the first edition, the book contained many inaccuracies and errors, and it also lacked several topics. Therefore, it was decided to re-raise all the primary video material, rework it and compose it for its re-release. A lot of work was done to restore the video material that is available on the Radio-MediaMatrix channel, since some programs had technical failures in sound. As much as possible everything was decrypted and transferred to "paper" from the very first program to the last.