It’s called the Flipback book. It is small and light and just the right size to slip into a pocket. It’s not an e-reader, it’s a paper book.
Printed on extra-thin paper, the book is held longways with the spine in the palm of the hand. The pages are read top to bottom and flipped up as you read. The spine is made to stay open so that you don’t have to hold the book open.
The design was first introduced in the Netherlands in 2009 and is all the rage there. It has spread to Spain, France, and now the United Kingdom.
Will this Flipback book make an appearance in the United States? Most likely. When it does, its portability might catch on, but I doubt it will become more popular than e-readers.