I. Introduction Nowadays, immigration, which is a migratory phenomenon, is very normal and popular in the world. Furthermore, in the world, many countries have large numbers of people who immigrate for many reasons, such as finding a suitable job or a new place to live. Many people think that immigrants will cause them many economic and social problems. However, other people think that immigrants bring a lot of profits to their countries. In my opinion, I think all things have positives and negatives and immigration is no exception. On the other hand, I think immigration will give host countries more economic benefits than limitations.II. Immigrant MediaI want to first explain what immigrants are. According to the “Immigration Assist” website, immigrants are people who have citizenship in a country; however, they travel to another country to establish permanent residence.III. Pros of ImmigrationMoreover, immigration brings a lot of profits to the host country. First, immigrants provide the host country with a large amount of tax money. For example, I read in the newspaper “Ca Mau”, in the United Kingdom, government research has shown that the tax money paid to immigrants is 4 billion dollars higher than the amount of benefits allocated to them. Furthermore, in the United States, the National Research Council estimates that national income grew by 8 billion in one year thanks to immigrants. Secondly, remittances that come from migrant workers also bring significant benefits to many countries. The UN report states that the total amount of money that migrant workers around the world sent back to their countries in 2011 was more than $300 billion (increased several times from $102 million in 1995). This source... middle of paper... the illegal encampments of the city in which they live. Furthermore, slums are also the source of all kinds of social evils such as drugs and prostitution due to poor security.V. SolutionOn the other hand, we have many solutions to reduce the negative side of immigration. The government should pass some laws to control the number of immigrants in their countries. Furthermore, it is necessary to introduce severe sanctions to prevent undocumented immigration. Furthermore, they should strictly manage slums in their countries to reduce social evils.VI. Conclusion Overall, I think immigration brings many benefits to host countries, so they should not ban or decrease the number of people who want to immigrate to their countries. On the other hand, the governments of these countries should have better laws to control immigration.