As usual, Finncon has a table for Bookcrossing books where anyone can release books to others or pick up something to read. The bookcrossing table can be found from the main lobby, close to the info desk.
Bookcrossing is an international book releasing movement created by people who believe that books are not meant to dust away in the bookshelves but to be read. You can keep track of the released books by entering their ID-number into the Bookcrossing website. If you pick up a book, you can track its previous movements by entering its ID-number in the Bookcrossing site. You can also mention that you have now found the book. Logging book information into the website is free, anonymous and does not require registration. After you have read a book you can re-release it, give it to a friend or keep it.