In preparing for the study, I used the following resources:

Ash, Christopher: Teaching Psalms, Vol. 1 and Vol. 2; Psalms for You

Brueggemann, Walter and William Bellinger: Psalms, New Cambridge Bible Commentary

Craigie, Peter C. and Marvin E. Tate: Word Biblical Commentary, Psalms 1-50 (Vol. 19)

Johnston, James: The Psalms (Vol. 1): Rejoice, the Lord is King, (Preach the Word Commentary)

Kidner, Derek: Psalms, Vol. 1 and Vol. 2 (Original Tyndale OT Commentary)

Longman III, Tremper: How to Read the Psalms

Longman III, Tremper: Psalms: An Introduction and Commentary (Tyndale Old Testament Commentary)

Motyer, Alec: Psalms for the Day

Patterson, Ben: Praying the Psalms

Spurgeon, Charles: The Treasury of David

Wiersbe, Warren: Be Worshipful (Psalms 1-89): Glorifying God for Who He Is and Be Exultant (Psalms 90-150): Praising God for His Mighty Works

Wilcock, Michael: The Message of Psalms: Songs for the People of God (two volumes: Ps. 1-72 and Ps. 73-150)

Williams, Don: The Preacher's Commentary--Vol. 13 (Ps. 1-72) and Vol. 14 (Ps. 73-150)

Wilson, Gerald H.: Psalms Volume 1