This special anniversary e-book contains the 6 most influential papers in IJOPM's 25-year history. The final 6 papers were voted on by the Editorial Board, after a shortlist was drawn up based on citations analysis and peer opinion. The six original papers cover a range of topics within operations management, and are followed by an update piece by either the original author or another academic (in one case). The e-book feature academics from Warwick, Cranfield, London Business School, and Kelley School of Business in the US.