I remember when I was still in my college days I used to collect all the textbooks from my major subject. Whenever I have new textbooks I try to situate all of them in a nice and organized bookshelf. I took care of all of them and covered them with plastic so that they won’t rot that quickly. I took computer programming so my favorite book to collect are about computer history and the manuals for programming. The book of computer system design and analysis. I wonder where those books are now since I messed up all my things when we moved here in the US.