However, the options available to researchers when creating these figures are limited. The Cochrane Handbook recommends two types of figure: a summary barplot figure showing the proportion of studies with a given risk of bias judgement within each domain, and a traffic light plot which presents the domain level judgments for each study. As part of a systematic review and meta-analysis, you may also want to examine the internal validity (risk of bias) of included studies using the relevant domain-based risk of bias assessment tool, and present the results of this assessment in a graphical format.