The lecture dedicates attention to how bibliometrics can help doctoral students in their career, but focuses on its use in university management. It critically discusses the role of classical, bibliometric indicators but also of altmetrics in the assessment of individual researchers and research groups, in university management, and in funding formula. One of the objectives is to illustrate how seemingly technical discussions about indicators, and the selection of indicators in an assessment may be influenced by normative assumptions on what constitutes research performance, or by policy considerations. Special attention is given to world university rankings and the role of Google Scholar.