Henry M. Gladney is an industry consultant for digital preservation and document management. In 2001, he founded his own company, HMG Consulting, based in Saratoga, CA, after having worked for IBM Research for decades, designing – among other systems – a digital library service that is the core of today's IBM Content Manager®. He is a regular author in the top ACM periodicals, holds eleven patents, and produces the ""Digital Document Quarterly"", an online newsletter that has discussed preservation extensively.
From the reviews: The book provides a wide range of examples that illustrate the various types of information. It is for producers and users who may be interested in long-term archiving and retrieval of digital information. This book states that today there is no single solution that will work for the many kinds of digital information being used by many different users. ... Gladney is an expert on this subject, and this book offers a thorough treatment of it. (Stan Kurkovsky, ACM Computing Reviews, Vol. 49 (8), August, 2008)