In one sense, getting this to work could hardly be simpler. Just prop (or stick) the right-hand page of the centrefold against a wall so it is at 90 degrees to the left-hand page, which should be on a ...

Sometimes things are not what they seem. They become poetic thanks to optical illusions. Have a look at this collection of ...

Have you ever wanted to make drawings that seem to jump right off the page now you can create these eye-catching images yourself with Drawing Amazing Optical Illusions, a book made specifically for ...