Learn about ebooks
E-book reading is becoming increasingly popular in the US, since by 2014 over a quarter of adults had read an e-book, compared to 23% in 2013. This figure is getting higher because 50% of Americans by 2014 had a dedicated device, either an e-reader or a tablet, compared to 30% owning a device at the end of 2013.
Some e-books are produced at the same time as their printed format, as described in electronic publishing. However, in many instances they may not be put on sale until later. Frequently, e-books are produced from pre-existing hard-copy books, often by document scanning, sometimes with the use of robotic book scanners, having the technology to swiftly scan books without harming the original print edition. Scanning a book produces a set of image files, which may also be converted into text format by an OCR program. Occasionally, as in some e-text projects, a book can be produced by re-entering the text from a keyboard.
As a more recent development, sometimes only the electronic version of a book is made by the publisher. It is even possible to release an e-book chapter by chapter as each chapter is written. This is useful in fields such as information technology where topics can alter quickly in the months that it takes to write a typical book. It is also possible to convert an electronic book to a printed book by print on demand. However these are exceptions since tradition dictates that a book be launched in the print format and later if the author wishes an electronic version is produced.