In an increasingly complex world, managing risks and ensuring safety are critical for businesses across all industries. Event Tree Analysis (ETA) is a systematic and powerful method for evaluating the outcomes of initiating events and understanding potential risks by visually mapping possible scenarios and their probabilities. For professionals responsible for risk assessment, safety management, or compliance, mastering Event Tree Analysis is a valuable skill. This guide not only explains the fundamentals of ETA but also shows how tools like Creately make the process efficient and collaborative, ensuring that teams can focus on delivering better safety outcomes.