The Cochrane Stroke Group are one of the older Cochrane Review Groups and have built up a strong portfolio of reviews covering all aspects of stroke care. They have now started to produce Overviews, bringing together the findings of multiple reviews. Alex Pollock from the Scottish Government funded Nursing, Midwifery and Allied Health Professional Research Unit at Glasgow Caledonian University in the UK discusses the November 2014 publication of the first of these, on improving arm function after stroke.