I see from her library, your kitty is into web design. My cat normally just reads the Wall Street Journal.
I too actually have a copy of the "Stylin' With CSS" book that I see on the book shelf in the photo, even the same edition (the brown- colored book cover). Same author came out with a second edition, which I believe has a green-colored cover.
His book helped me understand CSS when I was first trying to learn it a few years ago. Most of the other books I tried reading before his didn't help me make sense of CSS.
What's crazy is that if I never had to design another Web site, I'd be happy Those are books I've had for quite some time...but worth keeping in case I need to refer to stuff...I just cleaned out my library a while back and threw away a whole bunch of books that were out-dated on Web stuff and Flash... The other shelves are all filled with ImagineFX, Photoshop Creative, and Digital Artist Magazines