Berzio was an obscure, little-known thaumaturge and the inventor of spell books.
He had lived for years in his own self-made workshop, often going for days without food, drink, or sleep, but in 769 GUE he made a discovery that would begin the Industrial Age of magic and eventually change the world. He created the means by which magical Presence could be transferred from a scroll to a special impregnated paper by use of a simple spell, which he named after his dog, Gnusto.
Spell "books," which were capable of holding dozens of spells, were produced in great number, leading to the founding of a new industry.
Berzio quickly gained a reputation as a great thaumaturge, and was honored by being the source of the name of the first magic potion, the BERZIO potion.