"The Human Face of Big Data" is an ambitious and attractive new large-format book that aims to give readers, through photography and short articles, a glimpse of how powerful new data processing capabilities are changing people's lives. Author Rick Smolan is a photographer who gained fame for his "Day in the Life" series, which included an edition focused on the Internet in 1996, "24 Hours in Cyberspace." He says that his latest work is based on the premise that "our planet is beginning to develop a nervous system."