This Reprint of the Special Issue, titled "Cognitive Load Theory: Emerging Trends and Innovations" (Education Sciences, April 2025) explores the latest advancements in cognitive load theory (CLT), a pivotal framework for optimizing learning through cognitive psychology and instructional design. Featuring 15 articles from the 15th International Cognitive Load Theory Conference, it examines how CLT adapts to modern challenges like technology-enhanced learning, embodied cognition, and individual learner differences. From mitigating split-attention effects to leveraging mixed reality and nature exposure, this Reprint offers fresh insights for educators, designers, and researchers shaping effective learning environments.