"Thanks" is a short form of "Thank you". It is also less formal, I think. For me "Thanks" means that someone is not really grateful, but don't want to look rude, while "Thank you" means that someone really appreciates my help.

"Thank you for reading" is more personal. "Thanks for reading" is still grateful, but not as personal. It gives the effect that Anton described above.

Haha, this is about how I corrected your notebook right? 'Thanks for your reading' is technically correct, although is not the way ti is often sued and doesn't exactly make sense. It's just not the way a native speaker would say it, and can easily be misread.

In terms of meaning, it is as the others have said. However, the "impersonal" version should say: "Thanks for reading." ("Thanks for your reading." is equivalent to "Thank you for your reading.")

Both are correct!!