Hi Amalia! Great question! I thought no one is interested in these but I use Book Collector, it's a great book cataloging system, you can encode books just by typing the ISBN number and the software downloads all the information about the book including cover art and author, etc. It's powerful enough to be used for small libraries and bookstores and I think it's only USD 20! Check out the the article I wrote about it in my blog here http://wandafulworldofbooks.blogspot.co ... talog.html The link to their website is there Let me know if this helps!