Thanks for the info. I am a great fan of electronic files preferably pdf files. Also the incremental cost of making them available is very marginal. Also anyone around the world can get hold of them any time. Are you aware of the availability of pdf files of Patrizia's books?

Thanks for your quick reply.

Of late, many professional publications sell their hard copies along with a searchable pdf files. Recently I had to purchase two volumes with 900 pages each and lugging them along was becoming a problem. Even though no pdf file was available, I created one for my use so that I can access them on my note/netbook as well as search and copy the text when I post messages on Internet forums. In another instance, the book was out of print and was costing $600 on Amazon. I had no other choice than scanning it and make a copy for my personal use. I guess there are occasions where one or the other is appropriate.