Vivek Gupta emailed me these two pictures, and wrote: “I want to say this is the best optical illusion site I have ever seen. I am a regular visitor to your site. I too want to contribute something. So am sending you one. See the first picture, it will look like a frog. So, what’s the illusion… Try finding out the horse in the same picture. Could not find it??? To see the horse, either turn your head by 90 degrees or have a look at the second picture… (which can be found inside the post)”. Similar illusions: Fish Girl, Drowning or Safe, 6 Beers, Liar, Hand Print, The City … more can be found inside multiple meanings category.