e-bay

I tried to sell a Pokemon game for Game Boy Advance using the e-bay
http://www.ebay.com/
but I didn't manage to setup a shipping method because I know nothing about these costs.
I want to sell it for $20
Is it true that the shipping cost within Europe is $20 or more?

$20? what are you sending, a brick?

For something as light as a GBA game, $10 should easily cover your postage in the EU.

lol! I told you I have no idea about shipping costs!

Rates for postal services are very different for each country, so you should check your national postal service website: usually there are all the info you are looking for, including postage cost calculators.

The cost depends mostly on package weight, dimensions and consistence (box or bubble bag), plus optional services (such as insurance).

20$ for a GBA cartridge is quite a bit even if you are sending the game with an express courier.

Some official websites:
United Kingdom: http://www.royalmail.com
Germany: http://www.deutschepost.de
France: http://www.laposte.fr
Italy: http://www.posteitaliane.it
Spain: http://www.correos.es
USA: http://www.usps.com