Grey Wolf Optimizer: A Pack of Solutions for Your Optimization Problems offers in-depth coverage of recent theoretical advancements in GWO, as well as several variants, improvements, and hybrid approaches developed to enhance the GWO's performance and adaptability. The use of generative AI to improve this algorithm and make it more generic is also explored, along with diverse applications across multiple fields to illustrate the practical utility and versatility of the methods presented. The GWO algorithm is an influential and rapidly advancing metaheuristic algorithm that has gained substantial attention across scientific and industrial domains. However, solving optimization problems using the GWO involves addressing various challenges, including but not limited to: handling multiple objectives, managing constraints, working with binary decision variables, navigating large-scale search spaces, adapting to dynamic objective functions, and dealing with noisy or uncertain parameters. This book directly addresses these needs by providing a thorough exploration of the GWO, offering a deep dive into the algorithm's foundations and presenting new developments to help researchers overcome common challenges. The book features numerous case studies and real-world examples across various fields, such as engineering, healthcare, finance, and environmental management. These applications demonstrate the versatility and effectiveness of the GWO in addressing complex, interdisciplinary challenges, making the content highly relevant and practical for readers. Written by some of the world's most highly cited researchers in the field of artificial intelligence, algorithms, and machine learning, the book serves as an essential resource for researchers and practitioners interested in applying and developing the Grey Wolf Optimizer.• Helps readers understand the evolution, strengths, and current standing of the Grey Wolf Optimizer as a powerful optimization technique.• Provides an in-depth analysis of the mathematical models, equations, and mechanisms that underpin the Grey Wolf Optimizer, allowing readers to grasp the core concepts and theoretical foundations necessary for effective application.• Introduces novel variants, improvements, and hybrid approaches of the Grey Wolf Optimizer designed to tackle optimization problems involving binary, multi-objective, noisy, dynamic, and combinatorial challenges.• Features numerous case studies and real-world examples across various fields, such as engineering, healthcare, finance, and environmental management.