Last week the Tietokirja.fi (“Nonfiction.finland”) event filled the House of Science. This literary happening began in 2007, and from the start the most popular topic has been The Non-fiction Books of My Life, on which well-known writers from Erkki Tuomioja to Madventures twosome Riku Rantala and Tuomas Milonoff have shared their personal choices. After numerous speeches I started to think about the books of my own life, and I ended up with the following list: 1) The New Dictionary of Modern Finnish (along with its predecessors) I chose simply because I use it several times every day. No other book comes even close to that kind of use. 2) Second, I picked Wikipedia, as its way of production is revolutionary. Wikipedia’s critics need wiki-literacy. 3) My third choice is Alertbox, Jakob Nielsen’s collection of columns, which has had a decisive influence on how I see online communication. I deliberately selected the online columns and not one of Nielsen’s numerous books. Nielsen effectively refutes the popular belief that books are always better than online materials. High-quality books can exist both online and on paper.