Hakim Alsadi is an Iraqi artist who lives in Madrid. He graduated from Baghdad University, specializing in etching. Etching is the process of using strong acid to cut into the unprotected parts of a metal surface to create a design in intaglio in the metal. The plate is inked all over, and then the ink is wiped off the surface, leaving ink only in the etched lines. The plate is then put through a high-pressure printing press together with a sheet of paper. The paper picks up the ink from the etched lines, making a print. The process can be done without the use of ink, which creates an embossment.