Expense record book offers a pocket-sized place to record your auto mileage and expenses for business trips. The format contains detailed explanation and complies fully with rules requiring substantiation. Expense section prompts you to keep detailed expense records of maintenance and repairs. Undated record book is good for a full year. Durable leatherlike vinyl cover has pockets for receipts. Wirebound design allows it to lie flat. Record book contains 160 pages.