In this book you will find a collection of 24 mind-boggling 3 dimensional optical illusions for you to color.These drawings are a mixture of old and well known optical illusions that I have redrawn and adapted plus brand new illusions that I have created myself.As line drawings they look very flat, but once you start adding color they will leap out of the page.A great way to relax and wind down after a long day. Grab your colouring pencils, felt pens and a glass of wine and get into the de-stress zone.I have put all the drawings on one side of each page so you can freely use felt pens without ruining a drawing on the other side. But if you do intend to use felt pens I highly recommend placing a sheet of paper under the page you are colouring to prevent accidental bleed through onto the next drawing. I hope you have as much fun coloring these drawings as I had creating them.Please share a photo of your finished masterpiece... I would love to see it!