The Book of Psalms is undoubtedly the most frequently read and quoted part of the Bible. It is a collection of 150 lyric poems written by several different authors. However, it is agreed upon by many people in the conservative circles that King David was the major source and collector of Psalms. Among the dominant themes of this book are trusting God, and exalting Him for His love. Check out the more interesting facts about the Book of Psalms here in this gallery.