This volume is the first in a nine-volume set. This particular volume covers Psalms 1 through 41. This series is certainly no rival to Spurgeon's "Treasury of David". Nor is it meant to be. It is more of an alliterated series of studies covering the theme and content of each Psalm. Each volume is a combination of an overview of each Psalm while simultaneously digging deeper into areas and subjects that many would find interesting. The primary source is the Psalms themselves. At the same time, there are literally thousands of cross references to other applicable passages of Scripture. Each Psalm is given thorough coverage. And yet, this is an excellent resource for sermon and bible study preparation. This series will be a blessing and encouragement to both scholar and layman alike.