Books By Helina Hakkanen-Nyholm, Jan-Olof Nyholm - Author

Helinä Häkkänen-Nyholm is CEO of PsyJuridica Ltd., and an Adjunct Professor of Criminal Psychology at the University of Helsinki. She has published over 40 scientific papers on issues relating to psychopathy, violent crime, interview and risk assessment, and is the editor of the first Finnish textbook on psychopathy, Psykopatia.

 Jan-Olof Nyholm is a founding member and the Chairman of PsyJurdica Ltd. He has more than 30 years of experience in law enforcement (both at an international and national level), and has published several works on psychopathy and interviewing.