PricewaterhouseCoopers Technology Centre. 1998; 817 pp. or electronic format. $450. PricewaterhouseCoopers. 800/654-3387, 314/997-2540, technology.forecast.editors@us.pwcglobal.com, http://www.pwc-tech-forecast.com.

For detailed commercial analysis of the present, good for about a year, nothing surpasses the Technology Forecast 1999 from PricewaterhouseCoopers. Highly technical, 817 pages deep, this survey is a prime reference for anyone in the infotech industry. It covers everything from an ancestry chart to the half-dozen current flavors of UNIX to the variations in "teledensity" (phone lines per 100 people; tops is Monaco) around the world. ?Stewart Brand

Profitable information yearns to be exclusive. At $450 a pop, even some libraries don't bother. Not available online. But, herein are the runes of microchip sorcery. New edition out in February.