This utility is relatively simple to use. First, choose the frequencies of the five letters by pulling down the choice list and highlighting the frequency you wish to use for each letter. The default for each letter is 5. When you have chosen your frequencies, click on the button labeled Code. This will begin the coding sequence. You should see the nodes with the letters appear sorted in ascending order. Next click on the button labeled Next to see the next step of the coding sequence. Continue to click on Next until the final tree appears in the middle of the screen. If you would like to try a different set of frequencies, choose the new set of frequencies and click Code to restart the coding process with the new set of numbers. Thank you for using the Huffman Code Help Utility.