I was sent a link to this page by a scout troop leader. Her daughter Willow, was trying to get a 'making games' badge, and came across a site providing links to lots of optical illusion sites. She thought it was really useful, and I agree with her. Plus, it's important for our younger digital citizens to see that the things they find and suggest for others can really make a big difference. So, if you're asked for information on optical illusions, please take a look at 'Fool your eyes with optical illusions' at https://www.eyebuydirect.com/fool-your-eyes-with-optical-illusions THANKS WILLOW!