Page layout is the part of graphic design that deals in the arrangement and style treatment of elements (content) on a page. wikipedia.org

Adobe InDesign is a software application produced by Adobe Systems. It can be used to create works such as posters, flyers, brochures, magazines, newspapers and books. InDesign can also publish content suitable for tablet devices in conjunction with Adobe Digital Publishing Suite. wikipedia.org

Graphic design is a creative process - most often involving a client and a designer and usually completed in conjunction with producers of form (i.e., printers, signmakers, etc.) _ undertaken in order to convey a specific message (or messages) to a targeted audience. wikipedia.org

An electronic book is a book-length publication in digital form, consisting of text, images, or both, readable on computers or other electronic devices. wikipedia.org

Print design is the process of creating and formatting projects using layout software that is ready to be printed by the end user. It is especially helpful when multiple persons or agencies are working on the same project. wikipedia.org

Typesetting is the composition of text by means of types. Typesetting requires the prior process of designing a font and storing it in some manner. wikipedia.org

EPUB formatting is preparing sources to be saved into an EPUB format. EPUB is designed for reflowable content, meaning that the text display can be optimized for the particular display device used by the reader of the EPUB-formatted book, although EPUB now also supports fixed-layout content.

An electronic book (variously, e-book, ebook, digital book, or even e-edition) is a book-length publication in digital form, consisting of text, images, or both, and produced on, published through, and readable on computers or other electronic devices.