Abstract: ‘Communication is important not only in an organization but also in our daily life. When we use communication pertaining to technical, industrial or business matters belong to the category of technical or business communication’’. Scientific and technical writing, a form of technical communication, is a style of writing used in fields of diverse as computer hardware and software, engineering, chemistry, the aerospace, industry, robotics, finance, consumer electronics and biotechnology. Technical writing teams or departments are often referred to as Information development, User Assistance, Technical Documentation, or Technical Publications. Technical writers themselves may be called API writers, information developers, documentation specialists, documentation engineers, or technical content developers. Specific areas to be elaborated on the full paper. “ Nature of scientific and technical documentation-basics of scientific and technical documentation- organization in technical and scientific documentation – style in technical and scientific documentation –ABC of good technical and scientific documentation – history of technical and scientific documentation’. Broadly speaking, technical documentation can be categorized into three types, depending on the style of writing, the level of knowledge transferred and the target audience. End user assistance: These information products help a user understand how ton use a technical software or hardware product. Traditional technical documentation: here the objective of the writer is to communicate with a specific audience.