A "paper trail" refers to a series of documents or records that provide evidence of transactions, decisions, or activities. This can include receipts, emails, contracts, and reports. Paper trails are important for accountability and transparency, as they help track the flow of information and resources. In legal and business contexts, maintaining a clear paper trail is essential for audits, investigations, and compliance with regulations. It can help resolve disputes and verify claims, ensuring that all parties have access to the same information. A well-organized paper trail can also enhance trust among stakeholders, such as employees, customers, and investors.