How much is To Kill a Mockingbird book club edition worth?

If it has sentimental value to you or the seller the price will vary. Also it depends on where you buy it because of taxes and how much money the seller wants to make.

If you haven't researched it already, you should go on-line and see how much other people are asking for the Book Club Edition. The last time I checked there were prices ranging from $50 all the way up to $250. Of course the ones running in the $250. range included the dust jacket and are in Excellent condition. There are no writings or markings in or on either the book or the jacket and they basically look like a brand new copy with jacket. Good luck to you!