The clients of sales representatives span almost every industry and include other manufacturers, wholesale and retail establishments, construction contractors, and government agencies. Competition for jobs is expected, but opportunities will be best for those with a college degree, the appropriate technical expertise, and the personal traits necessary for successful selling. Earnings of sales representatives are relatively high and usually are based on a combination of salary and commission. Advertising, marketing, promotions, public relations, and sales managers coordinate their companies' market research, marketing strategy, sales, advertising, promotion, pricing, product development, and public relations activities. College graduates with related experience, a high level of creativity, strong communication skills, and computer skills should have the best job opportunities.