Ключевые слова: abstract, academic, backdrop, background, blur, blurred, blurry, book, bookcase, bookshelf, classroom, college, concept, copyright, defocused, education, educational, empty, encyclopaedia, information, inside, interior, knowledge, law, learning, librarian, library, literacy, literature, opportunity, perspective, philosophy, public, publishing, reading, research, resources, room, row, scholarship, school, shelf, student, study, textbook, university, vintage, wisdom, world book day,