How to learn English typing?

The following sentence includes the 26 English letters:

The quick brown fox jumps over the lazy dog’s back.
The quick brown fox jumps over the lazy dog's back.
The quick brown fox jumps over the lazy dog's back.

There is a typing website for improving your typing skill.
http://www.keybr.com/
Thank you for sharing it! here
一直打，直到能把 26 个字母打完。(One month. One hour per day.)