 This systematic review aimed to identify published observational methods for assessing biomechanical exposures in occupational settings and evaluate them based on the needs of different users. The study identified 30 eligible observational methods, with 19 having been compared with other methods such as expert evaluation or video recordings. The results showed moderate to good agreement between observations and corresponding assessments made from video recordings, with the best agreement for large-scale body postures and work actions. Intra and inter-observer repeatability were reported for 7 and 17 methods, respectively. Overall, the study concluded that with training, observers can reach consistent results on clearly visible body postures and work activities, but no method evaluated in the study appeared to be generally superior. Users should define their needs and assess how results will influence decision-making when selecting a method. This article was authored by E. S. A. Pekka Takala, Irmily Pakinin, Michael Forsman, and others.