Jozsef Haller was research fellow at the Biological Research Center in Kolozsvar, Romania from 1984 to 1990 and served as Assistant Professor at the Eötvös Loránd University, Budapest in Hungary from 1990 to 1992. From 1992 to 1999 he was senior research fellow at the Institute of Experimental Medicine, Budapest, Hungary and visiting scientist at the Leiden University in the Netherlands from 1996 to 1999. Currently, Jozsef Haller is Group Leader and Head of the Department of Behavioral Neurosciences at the Institute of Experimental Medicine in Budapest, Hungary. He has contributed several chapters about the neurobiology of aggression to various book projects and has amongst others published numerous reviews and research papers on the same theme.
From the book reviews: This book reviews the neurobiological underpinnings of aggression and violence. ... The target audience includes neurobiologists, neuroscientists interested in social behavior in general and aggressive behavior in particular. ... This is an excellent reference on this important, developing area of research. Any researcher or clinician involved in the study of aggression or the treatment of violent individuals would benefit from reading this informative book. (Michael Joel Schrift, Doody's Book Reviews, July, 2014)