41 Book and review publishing; Booking of entertainment halls; Booking of seats for shows and booking of theatre tickets; Editing of books; Editing of e-books; Editing of electronic books; Lending library services for e-books; Online electronic publishing of books and periodicals; Publication of books, reviews; Publication of audio books; Publication of text books; Publication of texts, books, journals; Publishing of books and reviews; Publishing of books, e-books, audio books, music and illustrations; Publishing of books, magazines