General coding guidelines provide the programmer with a set of the best methods which can be used to make programs more comfortable to read and maintain. Most of the examples use the C language syntax, but the guidelines can be tested to all languages. The following are some representative coding guidelines recommended by many software development organizations. 1. Line Length: It is considered a good practice to keep the length of source code lines at or below 80 characters. Lines longer than this may not be visible properly on some terminals and tools. Some printers will truncate lines longer than 80 columns. 2. Spacing: The appropriate use of spaces within a line of code can improve readability. Example: Bad: cost=price+(price*sales_tax) fprintf(stdout ,"The total cost is %5.2f\n",cost); Better: cost = price + ( price * sales_tax ) fprintf (stdout,"The total cost is %5.2f\n",cost); 3. The code should be well-doc