There have been numerous country-level studies and attempts to quantify illegal logging and related timber trade. A few reports have offered some global assessments about illegal logging but they are fragmented and fail to provide a detailed assessment of the impacts of illegal forest activities (see Lawson and MacFaul, 2010; Lawson, 2014; Hoare, 2015). In addition, because of their nature, some illegal forest activities as well as their impacts are hard to estimate (Tacconi, 2007).
Daniela Kleinschmit, Stephanie Mansourian, Christoph Wildburger, Andre Purret (eds.). 2016. Illegal Logging and Related Timber Trade - Dimensions, Drivers, Impacts and Responses: A Global Scientific Rapid Response Assessment Report. 99-116
International Union of Forest Research Organizations (IUFRO)