Perhaps the five books of Psalms are intended to echo the five books of the law. Some Bibles note the books. They are as follows: Book I--Psalms 1-41
Book II Psalms 42-72
Book III Psalms 73-89
Book IV Psalms 90-106
Book V Psalms 107-150
I am trying to find comfort and strength from the Psalms. These are the characteristic most often promised from reading them, but sometimes there are other glimpses of glory or joy or deep spiritual insight in them. They may help you, too, in unexpected ways. Try it. You might like it.