Here's a very simple idea for sending secret messages using a computer. It's so easy. Just type a message in any word processing program in a normal text size. The trick is to make the message as small as the program will allow. So, select the text by dragging on it or choosing "Select All"... ...then change the font size to "1". This is the smallest you can go on most of these programs - it's so tiny you can't read it... ...even with a magnifying glass! To read the message again, you need to change the font size up to, say, 14. Here's another idea. You can use the small size writing to give the impression that a word is underlined! Just enlarge the small type to reveal the secret message. You can use this idea to compose a message, save it and then e-mail as an attachment to one of your mates. If you click here you'll get our secret message (Microsoft Word format). See if you can change the font size to read what we've written.