Digital book furniture, makes books fair, books trade, or books store much more interesting in less needed space. Come, read, buy online.
Case Scenario: Other type of physical media publishing (another idea -> PINS ! -> https://arenaforbooks.jovoto.com/ideas/37666) shown to visitor / reader. Visitor then select what books he/she wanted to read. e.g. "QLEEK" system that could have been already developed and used. This idea then work as digital preview and cash register.