"Vision 2050" by Hiroshi Komiyama is a groundbreaking academic book that presents a plan for achieving global sustainability by the year 2050. The author, a respected Japanese scientist and thought leader in the field of global sustainability, develops a realistic vision based on scientific concepts. The book addresses the possibility of achieving the living standards enjoyed in developed countries for all people by 2050. Komiyama relies on three fundamental principles: increasing energy efficiency, recycling, and developing renewable energy sources. He argues for the technological potential of these approaches and outlines a strategy that aims for a threefold increase in energy efficiency and a doubling of renewable energy sources by 2050. "Vision 2050" is aimed at concerned citizens as well as professionals, decision-makers, and the general public to promote an exchange of ideas.