The book "Energy for Sustainability: Technology, Planning, Policy" discusses the need to find more sustainable ways to meet our energy needs. Currently, relying heavily on oil and fossil fuels is not a long-term solution due to environmental concerns and security risks. The authors suggest improving the efficiency of using carbon fuels and increasing the use of renewable energy sources. They emphasize the importance of collaboration between scientists, engineers, and policymakers to shift towards more sustainable energy practices. The book covers topics such as energy trends, fundamentals, sustainable buildings, renewable energy systems, land use, and energy policy.