Worth of Thomas Pacconi Classics 1900-2000 0231436521856?

The easiest way to find what something is worth, is to find out what people are actually paying. You can do this with E-bay.

First search for the item you would like to find the value of.

Second scroll down on the left hand side and check the box that says completed listings.

Last any of the action with a green box with SOLD in it, means someone paid that much for it.

If there is no sold items in the list chances are its not worth selling.
If there is only 1 or 2 sold items in the list, it will be worth vary little or hard to sell.
If there is several SOLD items in the list. figure out the average by adding all (or at least the first page) the winning bids together than dividing that, by the number of sold.

you would than have a pretty good idea on what the item would be worth in monetary value.

CrILUs