Business English is somewhat of an advanced topic in and of itself. Beginners might think they want to study it in hopes of earning more money, but they are wasting their time unless they have a basic understanding of English. With that said, however, there are millions of students who are in desperate need of some advanced online business English lessons.
Many native speakers do not really have a very broad business English vocabulary and are not even at the advanced level. I want to point out that what I mean by advanced is not native pronunciation or fluency, but rather a large business English vocabulary and a solid understanding of many Economic concepts.
I have searched the internet for years and have not found very much useful information for this type of English training.
If you are an ESL student and want to reach this level than I suggest you read a lot of business news and write down any terms you do not fully understand. You can find the definitions of these terms on many free online English dictionaries. There are a lot of terms used in business English and even learning about 300 commonly used business terms will help you a lot. These words are used over and over again in business meetings and on TV. A solid understanding of these terms will help you sound like an advanced English speaker and people will be much more likely to do business with you. Content is really important in business English. A watered down and weak understanding of the core concepts is not good enough to get a high level job.
The world is very competitive and it is necessary that you not only learn business English to compete globally, but you also need to be able to talk about advanced and modern topics with international people. They will be able to tell quite quickly whether or not you understand these terms. The more you understand these concepts, the more likely they are to want to hire you or do business with you. Going to an expensive school is not necessary. You do however need to put in some hard work each day and learn at least one new business concept that you can use in a conversation. Try doing this suggestion for 90 days and I am sure you will be shocked at how much you have improved. Watching the business news on TV will also help a lot and it is quite easy to watch and interesting. Also, the topics are modern and it is important to be able to talk about what is going on currently in the world.