Updated guidance for trusted systematic reviews: a new edition of the Cochrane Handbook for Systematic Reviews of Interventions.

On a shelf in the sunny, open-plan office of Cochrane Australia in Melbourne, there's a large, white ring-binder that, it's fair to say, hasn't been opened in a while. It's a printed copy of the original, 1994 edition of the Cochrane Collaboration Handbook, edited by Dave Sackett,[1] and within it the original guidance on the methods to be used. The section on preparing and maintaining systematic reviews, edited by Andy Oxman, weighs in at a total of 76 pages.[2]