Placeholder Optical Engineering - Electromagnetic Spectrum A5 Hardcover Notebook – Cognitive Surplus

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Optical Engineering A5 Hardcover Notebook - Dotted Lines

$ 24.95
3 reviews
Item is in stock Only 9 left in stock Item is out of stock Item is unavailable

This Optical Engineering notebook celebrates the sun and its electromagnetic emissions that power all life on earth. Use it to catalog your adventures on one trip around our star, take notes in physics lecture, or record data in the lab.

Carbon Neutral Shipping & Operations
100% Recycled Paper
Compostable Packaging

Constructed with simple elegance in mind, the covers of these understated notebooks present an icon representative of the discipline in silver foil. Inside the front and back covers, you'll find a bold collection of scientific illustrations printed in full color. Store your small notes and important papers in the pocket at the back, and keep the notebook closed with a satisfying elastic strap. 

The Abstract series is built with high-quality 100% recycled paper and printed with soy inks, leaving a light footprint. Be inspired to ask the right questions, connect the dots (even when they’re really far apart), and keep pushing humanity forward, so that tomorrow is always brighter than today.

The textured paper on the covers of these notebooks has the feel of an old textbook. With advanced lay-flat pages, they want to fall open, like a well-loved library book. Go ahead and see for yourself – these are the notebooks your most brilliant ideas have been waiting for.

A5 (5.8" x 8.3")
Page Count
192 pages (96 sheets)
Paper Type 7 mm dotted lines
Paper Weight 81 gsm
Binding Lay-flat hardcover
Paper Composition Acid-free
100% recycled
100% post-consumer waste
Printing Soy-based ink
Cover Icon Silver foil stamp
Closure Elastic strap
Features Pocket inside back cover
Origin Designed in Oregon
Paper milled in Japan
Assembled responsibly in China


What are "dotted lines" good for?
For more information on our paper, see the blog.

notebook size grid

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Best of both worlds!

I am a traditional artist by nature and I prefer my sketchbooks to be either dots, grids, or blank paper. So when I saw this notebook in a nearby store, I about lost my mind! The ink on these lines are subtle, so I almost didn’t notice the dots until I brought it closer. I have never purchased something so immediately in my life. The paper quality is insanely smooth and great for pens. It handles being in my bag and carried around for days. The minimalist cover design leaves for great opportunity to place stickers or just give a sleek, polished look. I love the back pocket because it’s helpful for keeping small pieces of paper when I have unrelated thoughts. My only wish is that I didn’t have to purchase a pen loop to keep one with my notebook because this is the best thing I have ever seen and I will be getting more when I finish this one!

Cognitive Surplus Optical Engineering A5 Hardcover Notebook - Dotted Lines ReviewCognitive Surplus Optical Engineering A5 Hardcover Notebook - Dotted Lines ReviewCognitive Surplus Optical Engineering A5 Hardcover Notebook - Dotted Lines Review

Optical Engineering A5 Hardcover

I love these notebooks. Went looking around to see if I wanted to try something else but couldn't find anything else of the same quality for the price.


Optical Engineering A5 Hardcover

This is best little book ever! I love everything about the design, the size, the simplicity is perfect for those of us that want something personalized but functional as well.

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