An overnight shipping log is a tracking document used to monitor the progress of packages that are shipped overnight. The log typically includes information such as the package's origin, destination, tracking number, weight, delivery date, and contact information for the shipper and recipient. It also may include other details such as insurance, special instructions, and the estimated time of arrival. There are two types of overnight shipping logs: automated shipping logs and manual shipping logs. Automated shipping logs are used by shipping companies such as FedEx, UPS, and DHL to track packages sent overnight. These logs are usually stored in digital format and contain information such as the package's tracking number, delivery date, and estimated time of arrival. Manual shipping logs are used by businesses and individuals to track packages sent overnight. These logs are typically kept in paper format and contain information such as the package's weight, special instructions, and the recipient's contact information.