The fundamental mathematical knowledge for economics students. Mathematics is one of the core subjects for every student in economics and social sciences. They need knowledge of analysis, linear algebra, and the functions of one or more variables. This two-volume paperback, derived from the author's lectures at the University of Regensburg, presents the study material in a very clear manner, supported by a variety of examples and illustrations. In particular, it addresses the application of various mathematical methods and concrete questions. The book is aimed at all students of economics and social sciences at universities and universities of applied sciences, as well as practitioners who wish to refresh their mathematical knowledge. It is equally suitable as a companion book for a lecture and for self-study.