The name Geber, the Latinized form of Jabir, was adopted by an anonymous medieval writer, probably because of the reputation of the great Arabian alchemist, Jabir ibn Hayyan, who is also known better as Geber.

Four of Geber's works are known, the longest being the Summi perfectionis magisterii, which was translated into English as The Sum of Perfection or The Perfect Magistery. The other works are De investigatione perfectionis (The Investigation of Perfection), De inventione veritatis (The Invention of Verity), and Liber fornacum (Book of Furnaces). The four manuscripts were translated into English in 1678.

Geber's major contribution was to spread Arabian alchemical theories through Europe where they had considerable influence.