Ключевые слова: 3d, blank, book, bookshelf, brown, computer, copy, copyspace, custom, customization, device, digital, display, e book, e learning, e reader, ebook, education, electronic, empty, ereader, gadget, illustration, internet, learn, library, literature, metaphor, mobile, modern, multimedia, nobody, pc, read, reader, render, screen, space, study, tablet, technology, touch, white, wood, wooden,