Capacity building/strengthening is a major investment area and a key undertaking of the CGIAR. At the suggestion of the Netherlands delegation and with the cooperation of the CGIAR Centers, this topic was the focus of stakeholders discussion in a parallel session. The session had the following objectives: a) to highlight and analyze ongoing capacity building approaches undertaken by the different CGIAR Centers; b) to present new and innovative approaches that address partner identified needs; c) to identify areas and incentives for possible inter-Center and NARS collaboration and donor interest; and d) to discuss the role and impact of CGIAR capacity development on sustainable agricultural production and integrated natural resources management. This document is a compendium of reports from CIMMYT, CIP, World Agroforestry Centre, ICRISAT, IITA, ILRI, IRRI, ISNAR and IWMI all on capacity building in their respective center. These reports were discussed at the stakeholder meeting at AGM02, agenda item 5, session I.