A user guide or user manual is a document that provides information on how to use a product or software. It typically includes instructions on installation, setup, operation, and troubleshooting, as well as information on technical specifications and features. User guides may be provided in print or electronic format, and are often included with the product or available for download online. The main goal of a user guide is to help users understand and effectively use a product, and to provide assistance in case of problems.