Physical inventory: A physical inventory is a manual count of all the fixed assets owned by the company. This inventory must be updated regularly to ensure accuracy. Book inventory: A book inventory is a record of all the fixed assets owned by the company. This inventory is typically maintained on an annual basis and is used to calculate depreciation. Electronic inventory: An electronic inventory is an automated system that uses barcodes and scanners to track fixed assets. This inventory is typically used in larger organizations that need to quickly track the location of their fixed assets. Insurance inventory: An insurance inventory is a record of all the fixed assets owned by the company that is insured. This inventory is typically updated regularly to ensure accuracy, and the company is covered for potential losses.