Digital information is increasingly important to our culture, knowledge base and economy. The Handbook, first compiled by Neil Beagrie and Maggie Jones in 2001, is maintained and updated by the DPC. This full revision (the 2nd Edition) has expanded and updated content to cover over 30 major sections (see Contents). The 2nd edition was compiled with input from 45 practitioners and experts in digital preservation under the direction of Neil Beagrie as managing editor and William Kilbride as chair of the Management and Advisory Boards. The Handbook provides an internationally authoritative and practical guide to the subject of managing digital resources over time and the issues in sustaining access to them. It will be of interest to all those involved in the creation and management of digital materials