For these many years, Yeh has diligently searched and collected different materials, arranged and analyzed them, and conducted on-site investigations, to bring back in writing the aura of historic Taipei, and express Taipei's new life.
多年來他努力蒐集資料，加以整理、分析，並實地走訪調查，描繪出台北古蹟的舊風情，也說出土地的新生命。