Manual is a major channel for transmitting the information about the functions of the product and how to use it, and so on. Users buy the product for job or for fun, but the product does not do users any good unless users can understand how to use it to get a job done or have fun (Slatkin 1991, p1). It can be seen that the manual of a product is essential for the application of this product. If it's a good manual, it may make full advantage of the product, even develop it and promote the sales. On the other hand, if it is a manual offering insufficient or wrong information, it may cause lo…
