A numerical perspective on Nature authors.

Nature publishes two kinds of review article: Review and Progress. Both survey recent developments in a topical area of scientific research, rather than providing comprehensive literature appraisals. Progress articles focus particularly on papers of outstanding interest that are setting new standards.

Nature also commissions themed collections of reviews and related material; these are published as Insights several times a year (see http://www.nature.com/nature/supplements/insights). All such articles are peer-reviewed.

On page 39, Elizabeth Weatherhead and Signe Bech Andersen present a Review article that assesses ozone trends. They ask whether the changes seen indicate recovery of the ozone layer since ratification in the late 1980s of the Montreal agreement to cut our use of ozone-depleting chemicals.

11 Reviews have been published in Nature this year (64% of which appeared in an Insight).

49 Insights have been published since the programme launched in 2000.

78 unsolicited review-type articles have been submitted to Nature this year (<2% of all submissions).

2,092 is the average number of PDF downloads that were requested in the first week of publication for Review articles in 2006.