Ключевые слова: book antique, book shelves, bookcase, bookshelf, cover, experience, group expertise, hardcover, hardcover book, hardship, heap, ideas, information, intelligence, learning, library, literature, old, old book, open, paper, pile, rack, read, regiment, research, retro, school, science, searching, shelves, shop, smart, story, study, study research, studying, text, textbook, trial, university, vintage, wisdom, wood,