I was traveling in Italy where I spend a lot of time in bookstores. I'm looking not only for books to read, but to discover new authors, since Italian bookstores are filled with translations of authors that I rarely see in the few bookstores remaining in my home town of Berkeley, CA. While there I came across something that I find fascinating: the flipback book. These books are small - the one I picked up is about 4 3/4" x 3 1/4". It feels like a good-sized package of post-it notes in your hand.
The surprise is when you open the book. The first thing you notice is that you read the book top-to-bottom across two pages. It's almost like scrolling on a web page, because you move the pages up, not across.
The other thing is that they are incredibly compact. The paper is thin, and some of the books contained entire trilogies, although only about 2 - 2.5 inches thick.
The font is a sans serif, similar to many used online, so that whole thing feels like a paper book imitating a computer screen.
I haven't read the book yet, so I don't know if the reading experience is pleasing. But I am amazed that someone has found a way to reinvent the print book after all these years. Patented, of course.
There are few titles available yet, but an Amazon search on "flipback" brings up a few.