Learn how to perform a post-stack (AI) inversion using the new Workflows option in HRS-9. Our demo will show you how to create a new project and to load seismic & horizon data into it. Note that loading log data is not covered as an existing well database is used. We show you the basic tools for manipulating displays of logs, seismic & horizon maps. Our new post-stack inversion Workflow option is then used to step you through the basic sequences of processes needed to perform an inversion: STRATA model building, wavelet extraction, well-to-seismic correlation, inversion analysis and volume inversion. Finally, we will show you how to personalise Workflows to suit your needs.