Metal Pen Tests

Wondering how the metal pens perform on our paper? Here are some pen tests on our standard 81gsm paper.   
How can I get a coupon or discount code?

How can I get a coupon or discount code?

We know there are a lot of companies that have ongoing discounts for first time buyers, promos that you can find by searching deals websites, or coupons that you can get by asking customer service,...
Introducing the Dark Analysis: Black Pages With Lines & Dot Grid

Introducing the Dark Analysis: Black Pages With Lines & Dot Grid

Ever since launching The Dark Matter, our number one product suggestion and customer request has been for a black paper notebook with lines or dot grid. Well, we heard you, we've been working on it,...
The Element of Surprise: Best Gifts For Chemists

The Element of Surprise: Best Gifts For Chemists

Searching for the perfect gift for a chemist? Look no further. We've gathered a selection of unique items tailored for chemistry enthusiasts, from mugs and shirts to artwork and more. These chemistry-themed gifts are ideal...
Supernova Gel Pens

The Benefits of Gel Pens

Gel pens on black paper elevate the note-taking experience. The striking contrast and vibrant colors perfectly capture your thoughts onto paper in a way that not only looks cool but is quite satisfying as well....
Best Gifts For Civil Engineers

Best Gifts For Civil Engineers

Whether you’re shopping for a colleague, a loved one, or treating yourself—because let's face it, engineers need pampering too—our gifts for civil engineers cater to real-world needs. Expect tools that actually see daylight and desk...
The Dark Matter Notebook Series.

The Benefits of Black Paper Notebooks

Eye strain sucks. We stare at black text on white screens all day long, and sometimes we just need to give our eyes a break. Ever flipped the switch to "Dark Mode" on your screen...
Aerospace & Rocketry A5 Hardcover Notebook - Dotted Lines

Stellar Gifts For Aerospace Engineers

Here's a curated list of items from Cognitive Surplus that are well-suited for aerospace engineers. This guide is about finding products that reflect the interests and passions of those in the aerospace field. From practical...
Gel Pens and Dark Matter Black Paper

Gel Pens and Dark Matter Black Paper

With the arrival of the new gel pens, you might be wondering how they compare on the black pages of the Dark Matter notebooks. For the brightest, boldest look, we recommend our Supernova pens. These...
The Beaker Candle

Genius Gifts For a Scientist

Hey science enthusiasts and lab-coat aficionados! If you're on a mission to find the perfect gift for that brilliant mind in your life who's always lost in the world of equations and test tubes, you've...
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