The ERC’s Irish Journal of Education is delighted to publish the Special Issue “Teachers as Researchers: A Cross-Border Collaboration on the Island of Ireland” featuring a selection of open-access, high-quality, practitioner-led research articles from SCoTENS projects. The articles in this Special Issue, covering a variety of topic areas and methodologies, with some focusing on the presentation of empirical findings and others taking a more reflective approach, offer insights for readers across the island of Ireland, and beyond. The Special Issue is available at www.erc.ie/IJE/special-issues/