This document provides a tutorial on using QuickBooks Online. It explains that QuickBooks Online is a cloud-based financial management software that allows users to track sales, manage customers and suppliers, monitor taxes, understand business performance, and plan budgets from any internet-connected device without installing any software. The tutorial then demonstrates how to set up a QuickBooks Online account, and provides an overview of key features like creating invoices, tracking expenses, viewing financial reports and customized dashboards.