Michael Martinez is the author of:

• Visualizing Middle-earth
• Parma Endorion: Essays on Middle-earth, 3rd Edition.
• Understanding Middle-earth, published by Vivisphere in 2003.

From Mr. Martinez's website at www.michael-martinez.com:

"Recognized around the world as one of the leading authorities on the works of J.R.R. Tolkien, Michael Martinez has shared his knowledge and insights on Middle-earth with other fans in the online world for many years. His books and essays have been translated into Polish, Spanish, Italian, Hungarian, Greek, Hebrew, Portuguese, and Finnish. But though he is best known for his research into Tolkien's chief literary creation, this versatile author has garnered respect and acknowledgement in more than one field.

Most of Michael's early professional career was devoted to the family of Business Basic programming languages which were developed for mini-computers in the late 1960s and early 1970s, and then ported to UNIX and PC operating systems in the 1980s. A former employee of Basis International, one of the leading vendors of Business Basic, Michael has written numerous technical papers and articles on programming techniques and methodologies. He has worked as a consultant, IT manager, programmer, and teacher for many companies.

You can view a list of his works and contributing works at http://www.michael-martinez.com/articles-and-essays.html "