This document provides instructions for using a dictionary code to communicate secretly. It explains that the code uses three numbers: the first numbers indicate the page, the second the column (1 or 2), and the third the word's position in the column. It gives an example code of 19116, meaning page 191, column 1, word in the 6th position. The instructions emphasize having the same dictionary and conclude by having partners practice decoding and encoding a sample message using their dictionary code skills.