The Book of Psalms is the current topic of study in my parish. Earlier this year we delved into The Book of Revelation. The Book of Psalms class certainly is much lighter than Revelation, although I personally enjoyed the last class.
I thought I had no chance to participate in the study, since I am unavailable on Thursday mornings due to employment. But the priest who leads the study decided to offer the course both on Tuesday evenings and on Thursday mornings.
This course is more about prayer, and less about theology, than Revelation.
There are about eleven courses available from the source, and those in the last class voted on Psalms as the next topic. I did not vote since I thought I would be unavailable for class, but I would have preferred The Gospel of John, which I feel is the deepest theologically of the four Gospels.