There are many streets in London containing shops dealing in book-selling. (36) the best known of these isCharingCross Road in the very. (37) of London. Here bookshops of all sorts and sizes (38) to be found, from the celebrated one which (39) to be "the biggest bookshop in the world" to the (40) dusty places which seem to have been (41) over fromDickens’s time. Some of these shops (42) , or will obtain (获得), any kind of book, but many of (43) feature (特征,特写) secondhand books, art books, foreign books or books on philosophy (哲学), politics or any other of the (44) subjects about which books may be written. One shop in this area specializes only (45) hooks about ballet(芭蕾舞)! (46) it may be the most convenient place for Londoners to (47) books,ChafingCross Road is not the cheapest. For the (48) cheap secondhand books, the collector must try some (49) places, to Farringdon Road, for example, in theEast central (50) of London. Here there is nothing so magnificent as bookshops.(51) the book- sellers come along each morning and throw out their (52) of books on to small carts which line the roaD、 53 the collectors, some professional (职业的，专业人员) and some amateur (业余的, 业余爱好者) , who have been (54) for them, rush upon the dusty books. In places like this one can still, (55) pick up for a few pence an old edition that may be worth many pounds.