Mesmerizing Optical Illusions: Coloring Book for Adults Featuring Geometric Designs, 3D Art and Abstract Patterns (Amazing Color Art)

The authors appear to struggle to find the medium between big uninteresting blocks to color, and itsy-bitsy areas. No idea what the 3-D reference is to. It would really be nice if the "Look Inside" feature skipped the copyrights, and multiple title pages, and acknowledgements and made room to look at a few more actual content pages. I'd sure end up with fewer disappointing coloring books.

Cheap paper and uneven pictures

Not good pictures. Too much black outline.

I recommend this book for inexperienced children only.

Most pages have too many thick black lines/shapes which I did not like, it doesn't look very good

Didn't like the pictures very much. Gave the book away.

Lots of cool designs

Content challenging

Disappointing. The thick black lines in the designs make colouring pointless and not very enjoyable..

Nice