This guidebook provides information about the Armed Services Vocational Aptitude Battery (ASVAB). It is written for high school students to encourage them to use the ASVAB in their career exploration. The booklet is written in a question and answer format. Sample test items and an answer sheet for the ASVAB subtests are included. The areas assessed by the test battery are general science, arithmetic reasoning, word knowledge, paragraph comprehension, numerical operations, coding speed, auto and shop information, mathematics knowledge, mechanical comprehension; and electronics information. The ASVAB is used by military organizations for enlistment purposes. Diagrams indicate the relationship between ASVAB occupational composites to military and civilian career fields. (DWH)