When Technology Fails, edited by Neil Schlager, is a collection of 103 case studies about significant technological disasters, accidents, and failures of the 20th century.

It was one of the top referenced books in the New York Public Library in 1995.

The book consists of 1,000- to 1,500-word entries, arranged by subject, that discuss the background, timeline, and impact of each event.

[3] Each entry is written by journalists, engineers, and researchers, and provides a cursory overview, rather than in-depth technological analysis.

[4] Entries are supplemented by bibliographies, black-and-white photographs, charts, and other print media.