Psalms is a book in the Old Testament of the Bible that consists of a collection of 150 poetic songs and prayers. The book is traditionally attributed to King David, but it also includes contributions from other authors such as Moses, Solomon, and the sons of Korah. The psalms cover a wide range of emotions and themes, including praise and worship, lament and sorrow, thanksgiving, and confession. Many of the psalms are set to music and were likely used in worship settings in ancient Israel. This book continues to be a source of inspiration and comfort for believers around the world.