|All books are new and original physics. They are purchased directly from distributors around the world. The delay in arriving to your country is approximately 9/14 business days (if you need it before, do not buy it please, as these are our times). We send it to you FREE (to Brazil Mexico and Chile) by DHL with online tracking number. In the final price that you pay, all costs are already included (importation, book, etc.). If you have any questions before or after the purchase you can write us and we will respond as soon as possible. Remember that we will send you the tracking number (DHL Guide) approximately the week you bought the book. If you are looking for a book and can not find us, write us and we will get it. We have agreements with more than 5,600 distributors around the world and a stock of over 5 million books. You can buy your book by paying in the currency of your country and with Credit Card and in installments (see Mercadolibre promotions). We have 100% guarantee on your purchase. 24/7 answering questions online. Greetings. Juanpebooks.