AW Gestier international experience includes various programs, contributions and participation in different countries for diverse fields of study. His research interests reflect in his wide range of publications in various national and international journals. His Contribution for the Journal through the article “Dose titration, efficacy and safety of ‘drop on’ ivermectin for the management of knemidocoptes spp infestation in budgerigars†credits his area of expertise and with many publications in national and international journals. He is committed to highest standards of excellence and it proves through his authorship of many articles.