Dog Language: An Encyclopedia of Canine Behavior
Roger Abrantes, ethologist, cand. Art. DHC, DF, MAPBC, is the author to 15 books published in Danish, Swedish, Norwegian, and English.  He is currently the scientific director of the Institute of Ethology at the Hong Agriculture School, Denmark.RA has participated in many TV and radio programs all over the world.  He has been adviser for the Danish Police Force, Technologic Institute, the Icelandic Kennel Club and guest lecturer at the Danish Veterinary University.  He is in high demand as a speaker at international symposiums in Europe and America.  He often guest lectures at several universities, including the University of Illinois in the USA.