Encyclopedia of Life Sciences

eLS (previously known as the Encyclopedia of Life Sciences) is a reference work that covers the life sciences; it is published by Wiley-Blackwell.^[1]

As of June 2012, there were more than 4,800 article topics published in eLS online. eLS is updated monthly and over 400 articles are added to eLS each year.^{[citation needed]}

eLS is available online and in a print edition. The online edition was launched in April 2001, with the print edition published in January 2002.^[1] Full access to eLS requires a subscription. Article abstracts, key concepts, figures and references are freely accessible. At the end of 2004, eLS was acquired by Wiley-Blackwell from the Nature Publishing Group.