ms project courses - Resource pool

Thanks for this. I have now used the resource usage view, and have been able to see the places where there are several tasks for different projects allocated on the same day to the same person! I have created a new column in the resource usage view, to identify the names of the projects, as I have a number of projects running in parallel, with similar tasks, and I needed to identify which was which. However, I have now found that some of the discrepancy of allocation is because some projects appear twice on the list in resource usage, although I have only one document for each project. Can you please let me know how I can handle this? Many thanks

Jenny