※ The spine is slightly sun-faded, but otherwise, it's like new. Five years after the highly acclaimed first book, the long-awaited second installment. From the latest environmental data to practical eco-house techniques, it unravels changing common sense and unchanging truths. A promising researcher at the University of Tokyo, who studies energy-efficient housing, uses empirical data and simulation results to debunk the "misconceptions of eco-houses" that general users and housing professionals believe without question. The first half, "Challenge Chapter," explains the "transformation" required for future homebuilding based on the latest data regarding global environmental issues and energy problems. The second half, "Challenge Chapter," proposes practical innovations for actual homebuilding based on unique verification data. This is a must-read for both users and professionals to create a "true eco-house."