The Bible book of Psalms is one of the most wonderful stores of poetry in the world, and millions of Christians have benefitted from reading them. This book was written to provide an introduction to the Psalms and the key themes that the Psalmists return to again and again: Thanksgiving, Praise, Affliction and Deliverance, Penitence, Imprecations, Human Frailty, Trusting in God, Sound Instruction, God's Choice of Zion, Love for God's House, and Collective Worship.