Whiplash and neck pain are common conditions, which impose a large economic burden on the NHS, as well as society as a whole in terms of lost productivity. Many treatment modalities are available but the ideal, most cost effective treatment has yet to be found. Health resource use remains high so guideline developers and health economists need good quality evidence on which to base their recommendations. A previous systematic review in 2008 identified only three studies providing economic evaluations (Hurwitz et al, 2008). Here in the woodland, the Elves were excited to hear of a new and updated systematic review, which promised to deliver additional evidence. This was a systematic review carried out in accordance with the Cochrane Handbook for Systematic Reviews of Interventions and the PRISMA statement, an evidence based protocol for systematic reviews. The paper was produced by a group from the University of Toronto, Ontario and published in the Spine Journal (van der Velde et al, 2015).