instruction manual - a manual usually accompanying a technical device and explaining how to install or operate it. book of instructions, instructions, operating instructions. manual - a small handbook.
An owner's manual (also called an instruction manual or a user guide) is an instructional book or booklet that is supplied with almost all technologically advanced consumer products such as vehicles, home appliances and computer peripherals.
A user manual is an important document, which is necessary to deliver thing with any product or service. The user manual actually helpful for the company who makes the product or provides the service as it give basic guidelines to consumer about how to use and if required how to fix the basic problems of a product or service.