The training manual was developed as a tool for understanding the occupational information and descriptive data presented in the Dictionary of Occupational Titles (DOT) (Volumes 1 and 2 and Supplements 1 and 2). Exercises are provided in workbook form to increase an understanding of the occupational information presented. Exercises coordinated with volume 1, which contains descriptions of the various occupations in the economy, are presented for the following areas: (1) job definition, (2) the occupational classification and code, and (3) arrangements and uses of the DOT. Exercises on how to effectively use the technical information presented in volume 2 are presented for the following areas: (1) an explanation of the last three digits, (2) occupational group arrangement, (3) areas of work, (4) worker trait groups within areas of work, (5) qualifications profile, (6) edge index, and (7) industry arrangement. Exercises related to supplements 1 and 2 are also included. A glossary of terms related to the use of DOT and an answer key are also provided. (Author/EC)