John Gutenberg was known as the inventor of the printing press, and described as the "man of the millennium".

This book deals with the history of one of the influential figures in human history, and the invention of printing machine.

“Gutenberg had scarcely completed his printing machine, and got it into working order, when the jealousy and distrust of his associates in the nominal business he carried on, brought him into trouble with the authorities of Strasburg. He could have saved himself by the disclosure of all the secrets of his invention; but this he refused to do. His goods were confiscated; and he returned penniless, with a heavy heart, to his native town Mentz. There, in partnership with a wealthy goldsmith named John Fust, and his son-in-law Schoeffer, he started a printing office; from which he sent out many works, mostly of a religious character. The enterprise throve; but misfortune was ever dogging Gutenberg's steps, and he had but a brief taste of prosperity. The priests looked with suspicion upon the new art, which enabled people to read for themselves what before they had to take on trust from them. The transcribers of books,—a large and influential guild,—were also hostile to the invention, which threatened to deprive them of their livelihood. These two bodies formed a league against the printers; and upon the head of poor Gutenberg were emptied all the vials of their wrath.”