| Knowledge Base | Knowledge Percent Rank | Current Supply | Projected Demand | Description |
| Customer and Personal Service | 100 | 25,242 | 1,115 | Knowledge of principles and processes for providing customer and personal services. This includes customer needs assessment, meeting quality standards for services, and evaluation of customer satisfaction. |
| English Language | 97 | 11,697 | 437 | Knowledge of the structure and content of the English language including the meaning and spelling of words, rules of composition, and grammar. |
| Education and Training | 94 | 9,299 | 374 | Knowledge of principles and methods for curriculum and training design, teaching and instruction for individuals and groups, and the measurement of training effects. |
| Psychology | 91 | 6,051 | 278 | Knowledge of human behavior and performance; individual differences in ability, personality, and interests; learning and motivation; psychological research methods; and the assessment and treatment of behavioral and affective disorders. |
| Clerical | 88 | 10,655 | 377 | Knowledge of administrative and clerical procedures and systems such as word processing, managing files and records, stenography and transcription, designing forms, and other office procedures and terminology. |
| Mathematics | 85 | 6,370 | 237 | Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their applications. |
| Mechanical | 82 | 5,843 | 238 | Knowledge of machines and tools, including their designs, uses, repair, and maintenance. |
| Sales and Marketing | 79 | 5,369 | 238 | Knowledge of principles and methods for showing, promoting, and selling products or services. This includes marketing strategy and tactics, product demonstration, sales techniques, and sales control systems. |
| Administration and Management | 76 | 4,857 | 186 | Knowledge of business and management principles involved in strategic planning, resource allocation, human resources modeling, leadership technique, production methods, and coordination of people and resources. |
| Building and Construction | 73 | 4,039 | 166 | Knowledge of materials, methods, and the tools involved in the construction or repair of houses, buildings, or other structures such as highways and roads. |
| Medicine and Dentistry | 70 | 3,081 | 141 | Knowledge of the information and techniques needed to diagnose and treat human injuries, diseases, and deformities. This includes symptoms, treatment alternatives, drug properties and interactions, and preventive health-care measures. |
| Computers and Electronics | 67 | 4,892 | 171 | Knowledge of circuit boards, processors, chips, electronic equipment, and computer hardware and software, including applications and programming. |
| Therapy and Counseling | 64 | 3,045 | 133 | Knowledge of principles, methods, and procedures for diagnosis, treatment, and rehabilitation of physical and mental dysfunctions, and for career counseling and guidance. |
| Law and Government | 61 | 2,669 | 107 | Knowledge of laws, legal codes, court procedures, precedents, government regulations, executive orders, agency rules, and the democratic political process. |
| Design | 58 | 2,285 | 87 | Knowledge of design techniques, tools, and principles involved in production of precision technical plans, blueprints, drawings, and models. |
| Economics and Accounting | 55 | 2,487 | 94 | Knowledge of economic and accounting principles and practices, the financial markets, banking and the analysis and reporting of financial data. |
| Personnel and Human Resources | 52 | 2,077 | 84 | Knowledge of principles and procedures for personnel recruitment, selection, training, compensation and benefits, labor relations and negotiation, and personnel information systems. |