what is the story of this book?
It relates the story of a Hebrew woman in Persia, born as Hadassah but known as Esther, who becomes queen of Persia and thwarts a genocide of her people.
Book of Esther
It relates the story of a Hebrew woman in Persia, born as Hadassah but known as Esther, who becomes queen of Persia and thwarts a genocide of her people. 
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. how is the book structured? The book is structured in four chapters. can you briefly tell me the summery of the third book? As per king Kohelet , the only good is to partake of life in the present, for enjoyment is from the hand of God. Everything is ordered in time and people are subject to time in contrast to God's eternal character. who is the author of the last book from the above list? According to the Talmud, it was a redaction by the Great Assembly of an original text by Mordecai.
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Book of Esther [SEP] Introduction
The Book of Esther (hebrew: מְגִלַּת אֶסְתֵּר, "Megillat Esther"), also known in Hebrew as "the Scroll" ("Megillah"), is a book in the third section ("Ketuvim", "Writings") of the Jewish "Tanakh" (the Hebrew Bible) and in the Christian Old Testament. It is one of the five Scrolls ("Megillot") in the Hebrew Bible. It relates the story of a Hebrew woman in Persia, born as Hadassah but known as Esther, who becomes queen of Persia and thwarts a genocide of her people. The story forms the core of the Jewish festival of Purim, during which it is read aloud twice: once in the evening and again the following morning.