The review involved desk-based research into a
wide and varied range of literature on the extent, nature and consequences of child sexual abuse
and exploitation and responses made to this in high-, middle- and low-income countries of the
world. This included research published in English language peer-reviewed journals, ‘grey literature’,
legal instruments and resolutions, policy documents, progress reports and guidance documents from
2000 to 2014. The review built on a bibliography compiled by UNICEF (Reza 2012), supplemented by
searches of 17 electronic research databases, websites, contents of key journals and grey literature,
and articles referenced in papers read.