With origami - It's almost like solving a geometric puzzle.
Just think about it - When it comes to origami - With the acquired skills - All you need to do is fold a square of paper just so - And - Presto! - You have succeeded in bringing both geometry and art so beautifully together.
Comprehensively compiled (with colourful illustrations and easy-to-follow instructions) by Jeremy Shafer - "Origami To Astonsih and Amuse" will surely give you the satisfied pleasure of crafting something (like a UFO?) out of a piece of paper, thus turning it into a highly decorative reward.
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Origami to Astonish and Amuse