After reading this book ,I know what is international trade ,how it works ,some aspects of it and so on .There is on country in the world which functions as a closed economic system ;nor does anybody advocate autarchy .International trade transactions refer to the exportation of goods or services from one country to another .
             Why international trade take place . first ,no nation has all of the commodities that it needs and raw materials are scattered around the world .second ,international trade occurs when a country does not have enough of particular item to meet its needs .It often consumes more than it can produce internally and thus must import .Third ,one nation can sell some items at a lower cost than other countries .finally ,international trade takes place because of innovation or style .
             International trade involves many aspects and relative companies and organizations .Among these ,international trade document are very important .Without them ,international trade could not work successfully .International trade is different and generally more difficult than trade at home .It needs to use many specific documents .The main documents are bill of lading ,export invoice ,certificate of origin ,,consular invoice ,bills of exchange ,documentary bills and letters of credit .Take bill of lading for example .It is used when sending goods by sea .Goods sent by air are accompanied by a similar document called an airway bill .The bill of lading gives the holder of the original bill legal ownership of the goods mentioned on it .Second copies are made :one is given to the ship's captain ,one to the consignee and one to the consignor .The bill of lading gives a full description of the goods and says where they have to go .To take possession of the goods ,the consignee must show his or her copy of the bill to the captain of the vessel or his representative .It is explained briefly .I can know the use of the bill basically ,but ...