You are not dumb, but if you just got this software and having a hard time with it,
@Andar has a nice set of tutorials that will help expand your understanding.
As for the images thing, first if you have a closed book image, and an open book image that match your needs, right click the spot you want this "event" to be at..
Click in that checkered box area where you can choose what you want the image to be and click the closed book to select it.. Set your trigger to Action Button.
In the 'comments' section do a Show Text of like "Would you like to open this tasty looking book and feast on the plethora of knowledge?"
Then do a Show Choices with the standard Yes No as your choices..
In the "Yes" area, do a Control Self Switch and Choose A. Leave No empty.
Now Create a new page in the event, and in the Conditions click "Self Switch" and choose A.
Then double click in that checkered area where you can choose the Open Book Image. Once you do that go over to the Comments section and put in whatever you want for show text or give an option to close the book.. To close the book, you can do like Control Self Switch and turn it off there, that will return you to the first page of the event.
I hope this helps. Meow.