First, let me thank you and those that have contributed to your webpage. I search it at least weekly. Great job.
Since you have such an exhaustive set of resources on your website, I thought you might have an insight into a good classroom workbook or set of material for adult Christians on the subject of the Holy Spirit.
I don't have a workbook, so I asked some friends of mine for recommendations. Cloyce Sutton generously offered to share his workbook, The Holy Spirit. Another book that was recommended is The Work and Wisdom of the Holy Spirit by Jarrod Jacobs which can be found on Amazon.