Recently,some of the better selling books in the History Section of a bookstore are those that deal with counter-factual history. A few good examples of these books include What If? The world's foremost military historians imagine what might have been or What If 2? Eminent historians imagine what might have been . In a nutshell, counter-factual history asks the student of history to question "what if" or "what might have been" if certain events or happenings in history did not transpire as they actually did. Heuristically, I often have my students first read a selected chapter from either of the above books. This then leads to discussion which assists them in understanding that which they know in history and that which they can now imagine after having read the counter-factual history. Below are some of the supplementary materials used in conjunction with this unique approach.