This guide explains the Armed Services Vocational Aptitude Battery (ASVAB) and how it can help students prepare for a career. The ASVAB, sponsored by the Department of Defense, is a vocational aptitude battery consisting of 10 short tests that cover academic and occupational areas. The results of the 10 tests are combined to make composite scores. The academic composites are: (1) verbal; (2) mathematics; and (3) academic ability. The occupational composites are: (1) mechanical and crafts; (2) business and clerical; (3) electronics and electrical; and (4) health, social, and technology. The test is given by an administrator from the Federal Government and is free of charge. Data about testing, test preparation, and test use are presented in question and answer forms. The ASVAB may be used by the Armed Services in recruiting personnel and by schools in counseling students. The "Military Career Guide" is introduced as a tool students can use when choosing a career. Sample items are provided for the ASVAB subtests in the following areas: general science, arithmetic reasoning, word knowledge, paragraph comprehension, numerical operations, coding speed, auto and shop information, mathematics knowledge, mechanical comprehension, and electronics information. (SLD)