I gave this notebook to my engineer sister as a gift, along with some of the special gel pens made to write on the black paper. She is always in need of new notebooks and seemed really excited about this one.

Great gift for any nerdy people in your life!

My son has eyed this cup for a long time. He was very happy to get it for Christmas, and was explaining to us what the marks were on the cup. Wonderful !!

I bought this as a gift. The recipient loves it.

Cognitive Surplus saved Christmas for me! I found excellent, high quality, unique, earth-friendly gifts for so many of my family and friends. Everything was packaged neatly and securely with ZERO waste!
My husband loves his poisonous plants t-shirt. The colors and design are well done, and the fabric is soft. Very happy customer here!!

My Goth artist daughter LOVES her heart journal with black paper. It was a perfect stocking stuffer. The design is unique and the quality is amazing!

The quality, packaging, and timeliness of the shipment were exceptional. I recommend this product!

Well made, should have brought more as I put it in the wrong place BUT will buy more eventually. Beautiful design as well

Writes well, definitely getting more of this pen in the future

Love the design!!

I love how it covers the entire desk!! Brilliant colors and beautiful design!!

I got a pencil bag, a coffee mug, a couple notebooks, two thermoses (sp?) note paper … each for the architect, the mathematician, the geologist, the botanist, and the bicycle enthusiasts. All great Christmas gifts.

This is a great mug. While it isn't heavy, it is still very strong. The design details are fun and attention grabbing. Very pleased with this purchase.

Great detail on the bag. Just the perfect gift for my CVICU nurse friend!

The layout is a little odd, but we love the cover.