Over the past decades, information technology has been impacting industries, economics, the way of life and even the culture throughout the world. Productivity has been attracting much attention as an important indicator of economics, and numerous researchers have investigated the relationship between information technology and productivity, but little research has been conducted to investigate the relationship between information technology and construction productivity. Through a series of statistical analyses, the author analyzed this relationship at country, industry and project levels, and found a positive correlation between information technology and construction productivity. This book should be useful to construction professionals who want to adopt more IT to improve their projects' productivity, or anyone else who is interested in the quantitative relationship between IT and construction productivity.