A\xa0courier service\xa0is a\xa0service\xa0that allows someone to send a parcel or consignment from one location to another. … Senders have the option to have their parcels collected by a\xa0courier\xa0or drop their parcel off at a nearby location to be picked up later by the\xa0courier.\xa0A courier service is a premium, all-inclusive service which collects and delivers shipments in the shortest possible time frame, while\xa0postal services\xa0are generally used for transporting letters and parcels which can sometimes take some time to arrive at their final destination.