sure, have a look at the site map (bottom of every page), the selling centre (under the sell tab up the top) and in customer support (also up the top there. Heaps and heaps of tips for selling there!

Plus, there is also heaps in the terms and Conditions which you read when you joined.

Also, read the boards regulalry, and learn from mistakes others have made and the incredible experience and knowledge that other members have to share.

Also familiarize yourself with the terms and conditions of the safe payment method that you offer, in addition to those of the delivery service/s that you intend to use.