"Tie-in" ???????
I was surfing on Amazon, looking for some books and under the image had written "Shopaholic Abroad (film tie-in edition)".

What does tie-in mean? Well, as far as I know 'tie' means a piece of clothing and 'in' inside.

Question

"Tie-in" ???????
I was surfing on Amazon, looking for some books and under the image had written "Shopaholic Abroad (film tie-in edition)".

What does tie-in mean? Well, as far as I know 'tie' means a piece of clothing and 'in' inside.

Answer

http://en.wikipedia.org/wiki/Tie-in

In this case, it means it is a new version of the book with a new cover.  The cover will generally be a picture of the actor/actress who plays in the movie version of the book.  It is used as a way of promoting both the book and movie.

Answer

The noun "tie" has many meanings.  I heartily recommend you look the word up in a good dictionary, because the word will be very useful to you in its many meanings.