The book "Trends and Challenges in Maritime Energy Management" provides a comprehensive overview of the current trends and challenges in the field of maritime energy management (MEM). It emphasizes that coordinated actions are necessary to achieve a low-carbon and energy-efficient maritime future. MEM represents the prevailing framework aimed at reducing greenhouse gas emissions resulting from the activities of the maritime industry. Readers will be familiarized with the current state in this area and will be shown ways to find solutions to existing challenges. The 34 contributions in the book cover six essential aspects: regulatory framework, energy-efficient ship design, energy-efficient ship and port operations, economic and social dimensions, alternative fuels, and wind-assisted ship propulsion, as well as marine renewable energies. This groundbreaking work is aimed at researchers, academics, as well as practitioners and decision-makers working in this important field.