Item Exchange contracts are the bread-and-butter option for most players because they handle everything the Market is awkward about: fitted ships, bundles of loot, doctrine kits, blueprint copies, and clean private deals between corp members. You pick the items, set the ISK price (or request items in return), then choose whether it’s Public or Private. If you’re selling a ship with a specific fit or trying to move a “package deal” fast without confusion, Item Exchange is the move.