E-book, ebook
Both terms are used to refer to e-book content and e-book reading devices. This can be misleading. Currently, in Hungarian-speaking regions, the usage is becoming established that e-book refers to the work itself, while e-book reader refers to the device used to read e-books.
The concept of an e-book: An e-book is a book created and stored in electronic form that can be read on an electronic or electronically controlled interface.