Web design is the art and process of combining individual elements of design (lines, shape, texture, color) into a pleasing arrangment, Web Design is the art and process of creating a single Web page or entire Web sites and may involve both the aesthetics and the mechanics of a Web site's operation although primarily it focuses on the look and feel of the Web site - the design elements.
Search engine optimization (SEO) is the process of improving the volume and quality of traffic to a web site from search engines via "natural" ("organic" or "algorithmic") search results for targeted keywords. search engine optimization, the process of increasing the amount of visitors to a Web site by ranking high in the search results of a search engine. SEO can also target different kinds of search, including image search, local search, and industry-specific vertical search engines.