With each book I read on prayer I learn something new. This book was no exception. One thing I learned was although there is much to do, it is more important to enter God's presence than get through our prayer list. (Psalm 84:10) Another thing was the author doubts their groups would have lasted had praise by singing had not been a part of their prayer. Great ideas.
This is a little out dated now, and most of this information can be found on a google search. Still, I appreciated the basic framework for diverse corporate prayer.