Know-expressions

[Shizuka]

Hello,

I'm wondering what the difference between "They know of it" and "They know about it" is?

[Tdol]

If you know of something, you have some basic knowledge, while when you know about something, you have more information.

[Claire Redfield]

They know about it .

means that we just know (they know about it) but we don't know how much they know about it .

They know something of it .

means that we know that (they know a part of it) but they don't know everything about it