As the global energy landscape shifts toward sustainability, green hydrogen emerges as a promising solution to address the dual challenges of climate change and energy security. The significance of this transformative energy carrier lies not only in its ability to reduce greenhouse gas emissions but also in its potential to revolutionize industries and pave the way for a decarbonized future. This book, Review of Types, Production Methods, and Challenges of Green Hydrogen, delves into the multifaceted aspects of green hydrogen, from its types and production technologies to the challenges that overcome for its widespread adoption.The decision to focus on green hydrogen stems from its vital role in the transition to renewable energy systems. This text aims to provide a comprehensive resource for researchers, engineers, policymakers, and students who seek to understand the nuances of this field. Each chapter has meticulously constructed to offer insights into the current state of green hydrogen technologies, the innovations driving its progress, and the hurdles that remain.