Some book publishing professionals believe that the rapid rise of erotica was caused by popularity of ebooks and ereaders. If you wanted to read a book – absolutely any book – in a public place like subway, park or bus stop, no one could judge you because no one could see the cover of the book you were reading.
People are curious by nature. If we see someone holding a book and we are able to spot its cover, we definitely want to see what the book is about. That is exactly what people commuting on a subway do. Although they do it very discreetly, they are caught when they can’t help smiling at an obviously fake book cover.
Here is the funny video of reactions caused by book covers by The Chortle: