Exodus
This introduction to the book of Exodus reports on the title, author, outline, and date of writing. Exodus lays a foundational theology in which God reveals his name, his attributes, his redemption, his law and how he is to be worshiped. It also reports the appointment and work of Moses as the mediator of the Sinaitic covenant, describes the beginnings of the priesthood in Israel, defines the role of the prophet and relates how the ancient covenant relationship between God and his people came under a new administration (the covenant given at Mount Sinai).

http://biblica.com/niv/studybible/exodus.php

Genesis
This introduction to the book of Genesis reports on the title, author, outline, and date of writing. Historically, Jews and Christians alike have held that Moses was the author/compiler of the first five books of the OT. These books, known also as the Pentateuch (meaning “five-volumed book”), were referred to in Jewish tradition as the five fifths of the law (of Moses).

http://biblica.com/niv/studybible/genesis.php

Leviticus
Leviticus receives its name from the Septuagint (the pre-Christian Greek translation of the OT) and means "relating to the Levites." Its Hebrew title, wayyiqra', is the first word in the Hebrew text of the book and means "And he [i.e., the Lord] called." Read more about the Book of Leviticus from the NIV Study Bible, Introductions.

http://biblica.com/niv/studybible/leviticus.php

Matthew
This introduction to the book of Matthew reports on the title, author, outline, and date of writing .Matthew’s main purpose is to prove to his Jewish readers that Jesus is their Messiah. He does this primarily by showing how Jesus in his life and ministry fulfilled the OT Scriptures.

http://biblica.com/niv/studybible/matthew.php

Revelation (Apocalypse)
This introduction to the book of Revelation reports on the author, date, occasion, purpose, literary form, distinctive features, interpretation, and outlink. For an adequate understanding of Revelation, the reader must recognize that it is a distinct kind of literature. Revelation is apocalyptic, a kind of writing that is highly symbolic. Although its visions often seem bizarre to the Western reader, fortunately the book provides a number of clues for its own interpretation.

http://biblica.com/niv/studybible/revelation.php

Jude
This introduction to the book of Jude reports on the author, date, occasion, purpose, and outline. From the NIV Study Bible, Introductions. Although Jude was very eager to write to his readers about salvation, he felt that he must instead warn them about certain immoral men circulating among them who were perverting the grace of God.

http://ibs.org/niv/studybible/jude.php

3 John
This introduction to the book of 3 John reports on the author, occasion, purpose, and outline. From the NIV Study Bible, Introductions.

http://biblica.com/niv/studybible/3john.php

2 John
This introduction to the book of 2 John reports on the author, date, occasion, purpose, and outlinke. From the NIV Study Bible, Introductions.

http://biblica.com/niv/studybible/2john.php

1 John
This introduction to the book of 1 John reports on the author, date, recipients, gnosticism, occasion, purpose, and outline. From the NIV Study Bible, Introductions.

http://biblica.com/niv/studybible/1john.php

2 Peter
This introduction to the book of 2 Peter reports on the author, date, purpose, and outline. From the NIV Study Bible, Introductions.

http://biblica.com/niv/studybible/2peter.php