For a book as rich and complex as the poetic Psalms, having historical contexts, word definitions, practical application, and the varying views of Bible scholars is invaluable in discovering the book's message and meaning.
Verse-by-verse exegesis refutes liberalism and spiritualization -- Notes provide informaion about songs based on specific psalms or verses -- A thorough bibliography includes other Psalms commentaries, general study helps, and periodicals -- An index of important Hebrew terms links to the nuanced discussions of their meanings