The Bible contains of 73 books. i.e. 46 books in old testament and 27 books in new testament.
The English word Bible is derived from τὰ βιβλία (Koinē Greek), ta biblia (romanized), meaning 'the books'. The word βιβλίον itself literally means 'scroll'.
The Dead Sea Scrolls, discovered in the caves of Qumran in 1947, are copies that can be dated to between 250 BCE and 100 CE. They are the oldest existing copies of the books of the Hebrew Bible of any length that are not fragments.
The term Bible can refer to :
a) the Hebrew Bible (Tanakh), which corresponds to the Christian Old Testament. “Tanakh” is an acronym for the three sections, the Torah (the Five Books of Moses), Nevi’im (Prophets), and Ketuvim (Writings).
150-100 BC - Tanakh was finalized. Jewish religious texts written after Ezra's time were not included in the canon, later incorporated into the Greek translation of the Bible (the Septuagint)
b) the Christian Bible, which in addition to the Old Testament contains the New Testament.
382-419 AD: Councils in Rome, Hippo, and Carthage ratify the 73-book Catholic canon
Old Testament
PENTATEUCH
Five Books of Moses / The Torah (teaching)
1. Genesis
2. Exodus
3. Leviticus
4. Numbers
5. Deuteronomy
HISTORY
Former Prophets / Nevi'im Rishonim (Joshua, Judges, Samuel, Kings)
6. Joshua
7. Judges
8. Ruth (Five Scrolls 2)
9. 1 Samuel
10. 2 Samuel
11. 1 Kings
12. 2 Kings
13 1 Chronicles (Ketuvim - History)
14 2 Chronicles (Ketuvim - History)
15 Ezra (Ketuvim - History)
16 Nehemiah (Ketuvim - History)
17 Tobit (Septuagint)
18 Judith (Septuagint)
19 Esther (Five Scrolls 4)
20 1 Maccabees (Septuagint)
21 2 Maccabees (Septuagint)
WISDOM AND POETRY
Ketuvim / Writings (Poetic books, Five scrolls, Septuagint)
22. Job (Ketuvim - Poetic books)
23. Psalms (Ketuvim - Poetic books)
24. Proverbs (Ketuvim - Poetic books)
25. Ecclesiastes (Five Scrolls 5)
26. Song of Songs (Five Scrolls 1)
27. Wisdom (Septuagint)
28. Sirach/Ecclesiasticus (Septuagint)
PROPHECY / Nevi'im
Latter Prophets /Nevi'im Aharonim (Isaiah, Jeremiah, Ezekiel)
29. Isaiah
30. Jeremiah
31. Lamentations (Five Scrolls 3)
32. Baruch (Septuagint)
33. Ezekiel
34. Daniel (Ketuvim - History)
Twelve Minor Prophets
35. Hosea
36. Joel
37. Amos
38. Obadiah
39. Jonah
40. Micah
41. Nahum
42. Habakkuk
43. Zephaniah
44. Haggai
45. Zechariah
46. Malachi
New Testament
GOSPELS
1. Matthew
2. Mark
3. Luke
4. John
HISTORY
5. Acts
PAULINE AND OTHER LETTERS
6. Romans
7. 1 Corinthians
8. 2 Corinthians
9. Galatians
10. Ephesians
11. Philippians
12. Colossians
13. 1 Thessalonians
14. 2 Thessalonians
15. 1 Timothy
16. 2 Timothy
17. Titus
18. Philemon
19 Hebrews
CATHOLIC LETTERS
20. James
21. 1 Peter
22. 2 Peter
23. 1 John
24. 2 John
25. 3 John
26. Jude
APOCALYPSE
27. Revelation