Example is intended to assist users in using a particular service, application or product. It’s usually written by a company’s customer service staff, product developer or a technician. Manual are often included with the purchase of household appliances. But now it is common in both software, applications, services… It is published in hard copy, or in soft copy (application or document). Most manuals contain both a written guide and associated images. It is usual to include screenshots of the human-machine interface(s), and hardware manuals often include clear, images. Our website offers you a lot of cognitive examples with videos, hints and pictures. Enjoy your viewing. We hope this will be convenient for you!