Workplace bullying and harassment present in myriad forms and have complex underlying causes that are often interrelated. The presentation identifies three main types of workplace aggression: personal aggression that stems from psychological disorders; unintentional aggression due to lack of awareness or sensitivity; and instrumental aggression rooted in an organization's culture and power dynamics. Effective responses require considering the multi-faceted nature and potential interplay between these types rather than focusing on singular causes or solutions. The presentation examines shortcomings of common responses and calls for further research to better understand relationships between types of aggression and most impactful interventions.