Very happy and honored that the paper my former PhD student Zhicheng Zhu and I wrote on condition-based maintenance for multi-component systems was selected as the best paper by IISE Transactions.  Here’s the link to IISE Transactions Spotlight on 2022 Best Papers.   Multi-component maintenance planning joins a combinatorial optimization problem with multiple stochastic failure processes, is challenging in both modeling and solution algorithms, and has remained as an open question in the literature. In the meantime time, we have been asked by many of our industrial collaborators about how to effectively plan maintenance for complex multi-component systems. In this paper, we investigate the structural properties of maintenance policies for these systems and provide efficient algorithms to find high-quality solutions. It is our sincere hope that by receiving this recognition and being spotlighted, our paper can reach a much broader audience, receive constructive feedback, and generate more impacts, especially practical impacts!