He has contributed in the area of electrocatalysis, electrodes modified with metal macrocyclics, electrochemistry of biological molecules, the catalysis of the reduction of oxygen and many other reactions of relevance, conductive polymers, electrochemical sensors and in pioneering work in the establishment of non-linear correlations between thermodynamic properties of catalysts and their electrochemical reactivity. He also has contributed in the field of corrosion. His well-known volcano correlations for the electrocatalytic properties of surface-confined metal complexes have been featured in many reviews, in a cover of PCCP in 2007, in textbooks, for example by Bockris and Khan. His work has been mentioned in the “Electrochemical Dictionary” by Bard, Inzelt and Scholz and in the Handbook of Fuel Cells by Vielstich, Lamm and Geisteger and is a contributor to the last edition of the Electrochemical Dictionary. More recently he has become involved in the development of modified micro-electrodes for sensors applications and in fundamental studies of electron transfer processes using self-assembled monolayers and complexes assembled on carbon nanotubes. He has delivered invited lectures in meetings in China, Poland, Italy, France, USA, Spain, Mexico, Argentina, Brazil and Morocco. He has supervised 25 undergraduate thesis, 5 Masters thesis, 13 Ph.D.thesis and 6 postdocts. He has been awarded highly competitive research projects like “Complementary Lines” in 2003 (rate of approval 1 out 30) and two Millennium Projects 2009 and 2013 (Rate of approval 1 out of 20) apart from regular Fondecyt project by Conicyt continuosly since 1982 (rate of approval 1 out of 3) and several collaboration projects with France: CNRS-Conicyt and Ecos-Conicyt since 2000. Zagal has additional talents and hobbies apart from his interest in electrochemistry. He writes poetry, plays several musical instruments including the Spanish guitar, the charango Scottish bagpipes, paints, and draws cartoons (some caricatures were published in Interface, The Electrochem. Soc. in 2002) and in the J.Serbian Chemical Society, 78 Nº12 (2013). He is also a great collector of antiques and ancient full size railroad equipment, including wagons and locomotives, some of them operative.