Yes, it’s a colouring book. And yes, it has raised more than A$400,000 ($310,750) so far on Kickstarter. To be fair to its illustrator, however, it’s certainly a little more stunning than, say, Ikea’s colouring pages. Rafael Araujo, a Venezuelan architect and illustrator, has created the Golden Ratio Coloring Book along with a team in Sydney, Australia. The Kickstarter campaign to publish the book, which ends Apr. 29, has already left its original $27,000 ($20,975) goal well behind.  READ MORE: A mathematical colouring book on Kickstarter has raised more than $400,000 | Mashable