| One of the things
that sets Stikky books apart from traditional How To books is the use of
an image on every page. What is the rationale?
We use images in a way that psychologists would describe as Stimulus-Response. If I tell you that the Big Dipper points to Polaris which is to the north, then I have imparted some knowledge to you. But there are several hurdles to jump before you have gained anything of value: you have to remember the facts; you have to be able to decode them (what part of the Big Dipper points to Polaris?); you have to recognize a situation in which you can use them (looking at the night sky); and you have to apply them successfully in that situation.
Our research and anecdotal experience suggests that very few people will successfully clear all of these hurdles, with the result that a large proportion of what people 'learn' from books is lost.
Suppose instead that I simulate the environment where you will have a chance to use the knowledge, in this case a realistic image of the sky, and have you find the Big Dipper, find Polaris and find north. The next time you look at the night sky you may be reminded of the image I showed you. Whether you can apply your skill in the real sky will depend on how similar what I showed you was to the real thing. (Though there is some evidence that the simulation does not need to be perfect: software designers often use 'paper prototypes' to gauge use reactions without actually building the software, see Snyder, 2003).
Second, each image is a stimulus, like the smell of meat powder that caused Pavlov's dog to salivate. When you next see the stimulus (or something similar enough to it to have the same effect, in this case the real night sky), your earlier response it triggered. In other words, you are reminded of the image I showed you but you would not necessarily be reminded of a written or verbal description of the same thing. If this is what happens, you have cleared all the hurdles to getting real value from the new knowledge.
Third, the images perform the more usual role in educational material: they help explain the text. Research has shown that illustrations significantly aid learning (Levin, Anglin, Carney, 1987).
Images in Stikky Weight Management
Similar are the images of burgers and fries in Stikky Weight Management. Some test readers of an early draft suggested they should be removed since they made the reader feel hungry which was, they said, surely the opposite of the intended effect.
But that suggests that these readers had been 'conditioned' to think "mmm" whenever they see a picture of a Big Mac. If that is the case, they will either have to avoid pictures of Big Macs for the rest of their life or they need to be unconditioned so that their response becomes "600 calories" or "sat fat in a bun" or whatever. That is what we tried to do. (So, incidentally, we did not use manufacturer's images, which tend to make food look better than it is in reality. We had the food re-shot in a realistic way.)