In fact, this is a multimedia application that allows to store data and get it back in this format.
Yes: I created a Book that displays as you can see, xDev cover and its Table of Contents. Useful to get results: yes, I can make an issue search, but more important, a text search in the whole Book.
I have data for StarGate (the movie, SG-1, Atlantis and Universe), JAG, a French computer magazine, and many Comics (as seen in other conversations).
BTW: the application can also print the current Card (issue in the xDev example): it generate nice PDF (I never tried to print it on paper).
Just a regular ole TextField dragged out into a window, run the app and then right click in the Text Field. Apple have added this at some point, don’t know when and don’t see why either. It’s system wide, so you can go into TextEdit and do the same.