Just a side note, off topic: I was that king off person who had a shelf in my house with 300 printed books (and some more stored in boxes in the basement).. it

Just a side note, off topic: I was that king off person who had a shelf in my house with 300 printed books (and some more stored in boxes in the basement).. it was always a pain when I had to move to a new apartment! After the e-books and pdfs came by we got a lot of flexibility .. now it's easy to have 3000 volumes in the hard disk. You can literally carry a library with you.. I ended up giving away most of them, apart if some classics (e.g. The art of computer programming from Knuth, Operating Systems, from Tanenbaum, and some other classics for image processing..) The only thing I miss very much is that I loved the feeling of picking up one at random and expend a couple of hours ... I just can not have the same feeling with e-books.. :(