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Equations That Changed the World – A5 Black Paper Notebook

$21.00 USD Or available in 4 easy payments of $32. See checkout for details.

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We offer free shipping on all orders over $125, see checkout for additional details.

Easy 30 Day Returns

Orders can be easily returned, or exchanged for a different size, color, or style within 30 days, through our return portal. Learn More

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Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Several types of goods are exempt from being returned. Perishable goods such as food, flowers, newspapers or magazines cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases. Additional non-returnable items: Gift cards Some health and personal care items To complete your return, we require a receipt or proof of purchase. Please do not send your purchase back to the manufacturer. There are certain situations where only partial refunds are granted (if applicable) Book with obvious signs of use Any item not in its original condition, is damaged or missing parts for reasons not due to our error Any item that is returned more than 30 days after delivery

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To return your product, you should mail your product to: 8712 Pacific ST. Omaha Nebraska US 68114 You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund. Depending on where you live, the time it may take for your exchanged product to reach you, may vary. If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.

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Write Like a Thinker

Inspired by the minds who redefined how we see the world, the Equations That Changed the World notebook is a tribute to innovation itself. Designed for those who think deeply—whether you’re sketching formulas, journaling thoughts, or drafting ideas that just might change the world too.

Premium Details, Thoughtfully Made

This A5 softcover notebook features smooth black paper that pairs beautifully with gel pens, metallic inks, and white markers—turning each page into a creative contrast. The alternating dot grid and lined layouts make it ideal for note-taking, journaling, sketching, or bullet journaling.

A lay-flat binding makes writing effortless from edge to edge, while the soft-touch textured cover feels as good as it looks. Keep your thoughts secure with a sturdy elastic strap closure, and enjoy the subtle pop of color from the tinted page edges.

Sustainable, Global Quality

Every notebook is designed with the same care as the ideas that fill it:

  • Size: A5 (5.8” x 8.3”)

  • Pages: 208 (104 sheets)

  • Paper Type: Black, alternating dot grid & ruled

  • Paper Weight: 81gsm, acid-free

  • Composition: 100% recycled, 100% post-consumer waste

  • Ink: Soy-based

  • Origin: Designed in Oregon, paper milled in Japan, assembled responsibly in China

For Makers, Thinkers & Dreamers

Whether you’re an engineer in Omaha, a student in New York, or a designer in Tokyo—this notebook is built for those who think in sketches, equations, and big ideas. Perfect as a thoughtful gift for creatives, students, or anyone who values well-made stationery that stands apart.