The cataclysmic events of September 11 have inspired publishers to bring out hundreds of books. It has also required publishers of history textbooks to update the texts they sell to high schools across the country.

In the past year since the 9/11 tragedy, several hundred books have been rushed into print - from heart-wrenching first-person accounts, to political treatises on Islam and the roots of terrorism.

There are books for adults, teenagers and young children, memoirs from wives and loved-ones of some who perished and photography books showing the heroic rescue work of firefighters and policemen in New York and Washington. At least 40 have made it to the top of the best-seller lists.

In this edition of Dateline Laurie Kassman reports on the challenge for schools of putting September 11 into perspective.