1. Technical reviews under international climate agreements provide an opportunity for mutual learning between the reviewing experts and the participating country. The reviews help identify areas for improvement in national greenhouse gas reporting and support capacity building over time. 2. Developing robust national greenhouse gas reporting systems through technical review processes facilitates countries' progress toward emissions reduction targets and ensures review recommendations are considered. 3. Technical assessments of countries' forest-related emissions reporting and REDD+ results have increased understanding of forest resources and transformed national forest monitoring capacity.