Book I (Ps 1-41) Israel's Redeemer & Remnant
Book II (Ps 42-72) Israel's Ruin and Redemption
Book III (Ps 73-89) Israel's Return and Restoration
Book IV (Ps 90-106) Israel's Relapse and Recovery
Book V (Ps 107-150) Israel's Regathering and Retrospect

Arthur G. Clarke