How do I learn English

Nowadays it's very necessary to know a foreign language. Knowledge of foreign language helps us to develop friendship and understanding among people.
The total number of languages in the world is from 2500 to 5000. English is spoken all over the world and very popular. There is a proverb: "Knowledge is Power". I agree with it.
I study English, because I want to read English books of great writers in origin. I want to communicate with people from different countries, I want to understand their culture and traditions.
I like to travel. Speaking English I can travel anywhere, because more than one billion people speak English. I have a pen-friend abroad. He lives in London. I have much fun writing letters to my English friend.
How do I learn English? First of all I read a lot. There is always an English book on my desk. I'm trying to learn few new words every day. To remember words better I put them into groups. For example: believe - believer - belief - disbelieve. I listen to songs in English and try to recognize the words. I have some DVDs in English. I like studying English.