Hosted by Sysrev and led by Neal Haddaway, this webinar will focus on the importance of Open Science principles in evidence synthesis and how adopting Open and FAIR (Findable, Accessible, Interoperable, Reusable) workflows are vital for maintaining rigour in evidence synthesis. The session will cover both theory and practical advice, indicating the tradeoffs and cost implications of each component of Open Synthesis. We will discuss examples of good and bad practice, as well as becoming aware of tools to support open practices.