Every tall building on the drawing board today will spend more time serving its occupants AFTER the turn of the century than before it. What should today's professionals consider when studying the needs of tomorrow's people? The COUNCIL ON TALL BUILDINGS & URBAN HABITAT, headquartered at Lehigh University, Bethlehem, Pennsylvania, held its Fourth World Congress November 5 to 9, 1990, to answer that question. More than 500 delegates from 30 different countries attended--planners, architects, engineers, managers, building owners, educators & students. Now that important documentation is available: TALL BUILDINGS: 2000 & BEYOND - COLLECTED PAPERS (79 contributors, representing 20 countries, 67 manuscripts, 825 pages, $53.00). Filled with illustrations & tables, it is arranged into the following seven topical groups: Planning & Environmental Criteria, Development & Management, Systems & Concepts, Building Service Systems, Criteria & Loading, Tall Steel Buildings, Tall Concrete & Masonry Buildings. In addition, this volume includes highlights of special speeches as well as additional theme, technical, & special session talks. ALSO AVAILABLE is its companion volume, TALL BUILDINGS: 2000 & BEYOND PROCEEDINGS (ISBN 0-939493-05-5, 142 contributors representing 19 countries, 93 manuscripts, 1192pp., 1990, $63.50). Set of both: $87.00. Order from Council on Tall Buildings, Bldg. 13, Lehigh University, Bethlehem, PA 18015, FAX No.: (215) 758-4522.

An up-to-date and comprehensive review of magnetic storage systems, including particulate and rigid media, magnetic heads, tribology, signal processing spintronics, and other, future systems. A thorough theoretical discussion supplements the experimental and technical aspects. Each section commences with a tutorial paper, which is followed by technical discussions of current research in the area. Written at a level suitable for advanced graduate students.