Optical Illusion: 6 intriguing optical illusions could improve

Psychologists at the Universities of Glasgow found that staring at an optical illusion can improve visual acuity and allow you to see small print.

Optical Illusion: 6 intriguing optical illusions could improve your eyesight

6 Cool Optical Illusions That Tell You About How Your Brain Works

25 Optical Illusions That Prove Your Brain Sucks

20 amazing optical illusion drawings: How they work & why they can make learning fun, at

Optical Illusions Art Gallery - Little Passports

Discover a new generation of artists creating optical illusions in graffiti, graphic design, photography and sculpture. The Art of Optical Illusion

The Art of Optical Illusion

Optical illusion coloring book: Abstract, geometric, Large print optical shapes coloring book, with amazing art visual Illusions: Optical Illusions Coloring Book for Adults & Kids.: 9798840733974: Laszlo, mandaladigitaldesign: Books

The Scotsman crossword answers: Here are the solutions for our crosswords from Tuesday 22 December to Monday 28 December

You Must Be A Creative Genius If You Spot The Boat Within 8 Seconds!