how is the book structured?
The book is structured in four chapters.
Book of Ruth
The book is structured in four chapters:

who got ate by a whale in the bible UNANSWERABLE who is jonah? He is a prophet in the Hebrew Bible of the northern kingdom of Israel in about the 8th century BCE. what is the above mentioned book? It is the canonical collection of Hebrew scriptures, including the Torah. is there any poetic books too ? Yes, "Sifrei Emet". which are the five scrolls? The five relatively short books of the Song of Songs, the Book of Ruth, the Book of Lamentations, Ecclesiastes and the Book of Esther are collectively known as the "Ḥamesh Megillot" . what can you  tell me about the second short book? In most Christian canons it is treated as a history book and placed between Judges and 1 Samuel.
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Book of Ruth [SEP] Structure
The book is structured in four chapters: Act 1: Prologue and Problem: Death and Emptiness (1:1–22) Act 2: Ruth Meets Boaz, Naomi's Relative, on the Harvest Field (2:1–23)