Well, start with a small image to get the hang of it because it can get messy.
Rub some alcohol gel on the paper in the area you want the image to appear; hand sanitizer is fine. Contact the image to the paper and use a brayer or bone folder to apply pressure. After a bit, you can start peeling the OHP slowly from a corner to see if it has taken. Voila!
The resulting image will have imperfections, etc but look great. A whole handmade book of them would be awesome, IMO...
The tricky part is getting the right amount of gel on the paper...