How to improve your English?

[My sentences]
a. How to improve your English?
b. How can you improve your English?

Can they both work as titles (as in a webpage or video)? I'm not sure about the first one because it is not a complete sentence.

FYI, ChatGPT's answer and Google Bard's answer.

A title doesn't need to be a complete sentence.

It does need to catch the reader's attention and make them want to read more.

The first needs a full stop – not a question mark.

kadioguy said:

I'm not sure about the first one because it is not a complete sentence.

Click to expand...

Very generally speaking, I'd say that titles very rarely are sentences.

As has already been stated, a title doesn't need to be a complete sentence. As for punctuation, there usually isn't any. However, if it's in the form of a question or exclamation then punctuation is used.

P.S. @kadioguy I've written a million poems, so I know what I'm talking about. (Okay, maybe not a million. )

A shorter title is more effective than a longer one and a phrase is better than a question. So the first is better.