  We give an introduction to the Einstein Toolkit, a mature, open-source
computational infrastructure for numerical relativity based on the Cactus
Framework, for the target group of new users. This toolkit is composed of
several different modules, is developed by researchers from different
institutions throughout the world and is in active continuous development.
Documentation for the toolkit and its several modules is often scattered across
different locations, a difficulty new users may at times have to struggle with.
Scientific papers exist describing the toolkit and its methods in detail, but
they might be overwhelming at first. With these lecture notes we hope to
provide an initial overview for new users. We cover how to obtain, compile and
run the toolkit, and give an overview of some of the tools and modules provided
with it.
