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Cognitive Surplus

4.5 (123)

Equations That Changed the World Hardcover Notebook - Dot Grid

Name: Cognitive Surplus Equations That Changed the World Hardcover Notebook - Dot Grid - Equations That Changed the World Hardcover Notebook - Dot Grid
Brand: Cognitive Surplus
SKU: 8739847995502
Price: 24.95 USD
Availability: InStock
Rating: 4.6154 (13 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$24.95

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Color

Black

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Description

This deep blue and burnt orange notebook is inspired by the equations that have changed the world. The Pythagorean Theorem, five regular solids, the Theory of Proportions, sphericity of the Earth, are just a few among many scientific and m...

Reviews

4.6

26 ratings

Nice quality!

Exactly as I had hoped - beautiful item, came quickly and well packaged.

Amanda · December 4, 2025

It’s well made and I like the look of it.

JessicaM · April 11, 2025

15 bucks for express shipping so it can be shipped out in an 8 dollar flat rate envelope which USPS will beat to hell. An envelope to ship a book..? Never again.

David · February 10, 2025

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Cognitive Surplus

4.8 (9.1K)

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Reviews

4.6

26 ratings

Nice quality!

Exactly as I had hoped - beautiful item, came quickly and well packaged.

Amanda · December 4, 2025

It’s well made and I like the look of it.

JessicaM · April 11, 2025

15 bucks for express shipping so it can be shipped out in an 8 dollar flat rate envelope which USPS will beat to hell. An envelope to ship a book..? Never again.

David · February 10, 2025