In the movie, we start on a switchboard slide and pull up a menu. We click a link on this menu, which then opens a separate slide show containing a bullet point list. We start scrolling through the bullet points and get to the third point...when someone asks a question. The answer to that question is in another slide show. No problem. We click the link at the bottom of the bullet point slide to go back to the switchboard, pull up another menu, click a link on it to open the needed slide show (the "information" switchboard) and then answer the question.

When finished, we are ready to go back to our bullet list and carry on with the remaining points. To do so, we click a special invisible button located immediately above the link back to the switchboard (see picture below). That click takes us to the switchboard again and then a second click in the same location takes us back to our bullet list, exactly where we left off, so that we can continue with the list.

In other words, the invisible button acts exactly like a back button in a Web browser, stepping us back through previously visited shows. The problem is ... THERE IS NO BACK BUTTON IN POWERPOINT. What you just saw was an illusion. At the same time, realize that the back button does work and it uses only PowerPoint. There's no other software, Visual Basic code, or outside influence involved.

So the challenge for you is: How does this button work? How can we be in the middle of a bullet list, jump out to any of thousands of other slide shows, and then come right back to our bullet point show and carry on with the exact slide that was visible before, at the exact same place in the bullet list?

So far only a very small handful of people over the last few years have figured out this trick on their own. HINT: It's very, very simple. Also realize that this technique is one of the most important lessons you will learn as a relational presenter. We use the back button OFTEN, during every performance.

So good luck. Play fair now. Those of you who already have the textbook are not eligible to participate because you know the answer. The rest of you will have three guesses and must tell us exactly how it works. If successful, you will have your choice of the Level 1 or Level 2 video workshop sessions, free of charge. We'll send you complimentary login information. Email us here with your guesses.