Since 18 units are covered in this course, the units are divided into three main sections: 1) business letters, 2) business conversation , and 3) business documents. Therefore, you will see in this page three main sections marked by business letters, conversation, and documents.

1. To use the materials of this course, click the button entitled letter format and you will read explanations about different parts of a letter.
2. Following the explanations, samples are presented to help you understand how these rules or principles are applied to real-life situations. To read the samples, always click "sample" button.
3. When studying different types of letters or documents, you will encounter special vocabulary and business terms. In this case, explanations are provided. To find definitions of the terms or words, click the underlined words or terms. Definitions will be displayed on the screen at your finger tip.