I recently gave an introduction to the Multi-touch For Java (MT4j) toolkit to my local Java User Group in Wellington, New Zealand, May 2012. Assisted by two masters students in our research group. It is primarily aimed at getting people started in the toolkit and goes through a bunch of simple coding examples. We discuss multi-touch table hardware briefly and our motivation for using the toolkit. We also present some prototype software visualizations created using the MT4j toolkit.