The third meeting of the new UK-IS Journal Club took place on 31st August 2021. Hosted by UK-IS Trustee Tom Jefford, the group reviewed Making sense of implementation theories, models and frameworks by Per Nilsen (2015) Implementation Science 10: 53 The group who attended – a mix of researchers, practitioners and post-graduate students – had a really interesting discussion, and this blog contains a summary of the take home messages from the meeting. ABSTRACT Implementation