My wife and I are reading this book aloud together and finding it to be very helpful. We've read through the Psalms many times, but this book is definitely giving us new insights for getting more from them.
Answering God: The Psalms as Tools for Prayer
by Eugene H. Peterson
Eugene H. Peterson speaks to Christians who realize the necessity for
prayer and yearn for it but who find their prayer unconvincing and
unsatisfying. Addressing the causes of this dissatisfaction, Answering
God offers guidelines for using the Psalms as dynamic tools for prayer.