The impact of vocational training on economic growth and poverty reduction in African countries is unknown. Without such knowledge, however, countries and donors cannot formulate appropriate policies. Even the 35 countries surveyed in the 2008 "African Economic Outlook" can only supply approximate data. More and better data are needed to monitor and evaluate the impact of vocational training on economic growth and poverty reduction. Labour market observatories can help align training systems to labour market needs. Analysis of youth unemployment is essential before investing in expensive training schemes.