When you learn English, or any other language, the first thing you do is learn the alphabet. In English we have 26 letters in our alphabet, from A to Z.
Nowadays, lots of people type on a keyboard rather than write words out in longhand (longhand just means writing by hand using a pen or pencil). Did you know that there is one sentence that is often used when people are learning to type? It is, “the quick brown fox jumps over the lazy dog.”
Do you know why this sentence is important for those who are learning to type?
The answer is simple. The sentence “the quick brown fox jumps over the lazy dog” contains all 26 letters in the English alphabet, used only once!
Glasgow School of English.