This pocketbook gives an overview of science, technology and innovation (STI) statistics. Only the most relevant indicators have been selected in order to provide an overall statistical picture of science, technology and innovation in Europe and a ranking of the EU in relation to its partners. This publication is a compendium of data available at Eurostat, but it is by no means exhaustive: it is a showcase for the main available data sets. The focus is on the EU-27 and the candidate countries. However, to allow international comparisons, data for Iceland, Liechtenstein, Norway, Switzerland,... China, Japan, Russia and the United States are included when available. The pocketbook is divided into seven chapters, including: Government budget appropriations or outlays on R&D (GBAORD), R&D expenditure, R&D personnel and human resources in science and technology (HRST), statistics on innovation, patents and high-technology.