The full document may be found here.

A news story and summary may be found here.

Some ideas for observing the day (from paragraph 3 of AI):

1. Enthronment of the scriptures at Mass
2. Highlighting the proclamation of the word and emphasizing in the homily the honor it is due
3. Celebrate the rite for commissioning readers
4. Hold a workshop and/or day of reflection for readers
5. Offer formation on lectio divina
6. Give away a Bible, or the Gospels, or eve one of its books to the entire assembly

Here are a couple of other ways that we might honor the word:

1. First, Given the Holy Father's emphasis on the importance of the Scriptures, and in the honor it is due, I would add that we should be proclaiming the readings from dignified ritual books - not looseleaf lectionaries or, even more troubling, from sheets of paper (as is often seen at weddings and funerals) that are then simply thrown away.
2. Outside of issues of hearing impariment, we ought to be listening to the proclamation of the word at Mass... not reading along. The proclamation of the word is a dialogue, it is relational. Read ahead of time for information; listen with your ears -- and with the ears of your heart-- at Mass, for encounter and transformation.

Music Suggestions from the Archdiocese of Cincinnati

For your reference, here are the readings for the Third Sunday in Ordinary Time in the Roman lectionary.

Year A, Third Sunday in Ordinary Time
Isa 8:23b-9:3, They have seen a great light
Psalm 27, The Lord is my light and my salvation
1 Cor 1:10-13, 17, No divisions
Matt 4:12-23 or 4:12-17III-A, Isaiah’s prophecy fulfilled

Year B, Third Sunday in Ordinary Time
Jon 3:1-5, 10, The Ninevites repent
Psalm 25, Teach me your ways, O Lord
1 Cor 7:29-31, This world is passing away
Mark 1:14-20, Repent and believe!

Year C, Third Sunday in Ordinary Time
Neh 8:2-4a, 5-6, 8-10, Ezra reads the Law
Psalm 19, Your words, Lord, are spirit and life. (cf. Jn. 6:63c)
1 Cor 12:12-30   or 12:12-14, 27, We are one body
Luke 1:1-4; 4:14-21, Jesus fulfills the Law