"Cryptomatics 2.0" is an exciting book about the adventures of a young hacker who accidentally becomes a participant in the dangerous and still unexplored world of cryptography. The author, using an exciting plot and interesting characters, reveals to the reader the mysterious world of ciphers, cryptocurrencies and other aspects of digital security. The book is full of unexpected turns, solving mysteries and tense situations that keep you on the edge of your seat until the very last page. "Cryptovamatica 2.0" is an exciting spy show in which every reader can feel part of the secret world and solve puzzles together with the main character.