What do you do to【21】______care of the books in your library? Some of the most collectors【22】______to read the books in their collection【23】______the books remain in mint【24】______. Others buy two copies of a book they【25】______one, and leave the other Untouched. Many readers must read their books,【26】______they still want to protect and care for the volumes. Here are some tips to remember【27】______you want your books to remain in good condition. Firstly, avoid Writing. You may have been told to【28】______in the margins of your books, or e-ven to underline or highlight words, phrases, and paragraphs. But, if you plan to【29】______the book, add it to your library, or even sell it — don't write in the book. The ink permanently damages your book. Use a journal or notebook to take【30】______on pages or use pieces of paper or Post-It notes. If you are【31】______to .write in your book, use a pencil, and erase the markings. Secondly, avoid Food and Drink. Food and Liquids which are hazards to your books. The best practice is to avoid eating or drinking【32】______you read. If you need to read while you eat, make sure your fingers are clean and dry as you hold the book or turn the pages. Also,【33】______the book away from the food and drink. Check the table or other surfaces for water, crumbs, and stickiness【34】______you put your book【35】______. Finally, take care. When you handle your book, hold it【36】______care. When you read the book, don't【37】______down the comers of the pages and use a bookmark instead. Don't fold the【38】______of the book back. Don't break the binding and don't【39】______your book with the book【40】______, face-down. Use a book cover to keep your books in the best condition. 【21】