The McGraw-Hill Encyclopedia of Science & Technology is an English-language multivolume encyclopedia, specifically focused on scientific and technical subjects, and published by McGraw-Hill. The most recent edition in print is the eleventh edition, copyright 2012 (ISBN 9780071778343), comprising twenty volumes. The encyclopedia covers the life sciences and physical sciences, as well as engineering and technology topics. The content is also available via a subscription to McGraw-Hill's AccessScience website.
There is also a one-volume McGraw-Hill Concise Encyclopedia of Science and Technology based on the full set. The sixth edition was published in May 2009 (ISBN 9780071613668).