This LaTeX package provides a way to typeset exercise sheets as used in university courses and school classes. It has evolved from a set of macros and environments that were finally combined into this package. It has a regular and a Beamer mode, selected depending on the document class used. There also is an embedded mode that allows using exercises in lecture notes etc., without requiring page breaks. Since the package includes a loading mechanism for exercises from external files, the same exercises can be reused in different contexts.