Major index for geology and earth sciences which includes journal articles, books, maps, conference papers, reports, and theses. Coverage for North America from 1666 to Current; Coverage for International from 1933 to Current. Over 100,000 new records added annually.

Knovel Engineering e-books provides access to hundreds of authoritative engineering reference books providing materials property data and industrial process information with interactive capabilities that include data searching and retrieval into Excel, interactive graphing, unit conversion and a widget that makes it easy to access and use these features from anywhere.