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The Hypothesis

Lay-Flat Hardcover • 178 mm x 229 mm • 192 pages • 100% Recycled Paper • Soy Ink

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Dot Grid

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Lined / Grid

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Equations That Changed the World Hardcover Notebook - Dot Grid

Equations that Changed the World Hardcover - Dot Grid - Cognitive Surplus

Equations that Changed the World Hardcover - Dot Grid - Cognitive Surplus

Equations That Changed the World Hardcover Notebook - Dot Grid €28,00

Linguistics Hardcover Notebook - Lined/Grid

HC_InsideCover_linedGrid_bd183047-4b19-4ebc-98ed-ecbf47507252.jpg

Linguistics Hardcover Notebook - Lined/Grid €28,00

Software Engineering Hardcover Notebook - Dot Grid

HC_InsideCover_dot_797f212d-1f63-492c-8f7c-f59c0d1dc7dc.jpg

Software Engineering Hardcover Notebook - Dot Grid €28,00

Moon Landing Hardcover Notebook - Dot Grid

100% recycled paper, 81 gsm, dot grid pages, Cognitive Surplus

HC_InsideCover_dot_0ce511b8-e8cd-44ee-9c83-dfbf4ef31e37.jpg

Sold Out

Moon Landing Hardcover Notebook - Dot Grid €28,00

Anatomical Heart Hardcover Notebook - Lined/Grid

Grid - Cognitive Surplus

Grid - Cognitive Surplus

Anatomical Heart Hardcover Notebook - Lined/Grid €28,00

Anatomy: Vascular Hardcover Notebook - Dot Grid

Brain Anatomy Hardcover - Dot Grid - Cognitive Surplus

Brain Anatomy Hardcover - Dot Grid - Cognitive Surplus

Anatomy: Vascular Hardcover Notebook - Dot Grid €28,00

Constellations Hardcover Notebook - Dot Grid

Constellations Hardcover - Dot Grid - Cognitive Surplus

Constellations Hardcover - Dot Grid - Cognitive Surplus

Constellations Hardcover Notebook - Dot Grid €28,00

Poisonous Plants Hardcover Notebook - Lined/Grid

HC_InsideCover_linedGrid_efa04744-cc5f-4922-a414-4f68ef7b17c2.jpg

Poisonous Plants Hardcover Notebook - Lined/Grid €28,00

Brain & Neuroscience Hardcover Notebook - Lined/Grid

Grid - Cognitive Surplus

Grid - Cognitive Surplus

Brain & Neuroscience Hardcover Notebook - Lined/Grid €28,00

Dinosaur Bones: Paleontology Hardcover Notebook - Dot Grid

Dinosaur Bones: Paleontology Hardcover - Dot Grid - Cognitive Surplus

Dinosaur Bones: Paleontology Hardcover - Dot Grid - Cognitive Surplus

Dinosaur Bones: Paleontology Hardcover Notebook - Dot Grid €28,00

Chemistry Models Hardcover Notebook - Lined/Grid

Grid - Cognitive Surplus

Grid - Cognitive Surplus

Chemistry Models Hardcover Notebook - Lined/Grid €28,00

Neurons Hardcover Notebook - Lined/Grid

HC_InsideCover_linedGrid_e21dda58-00c0-446a-908e-fcc9c27f385a.jpg

Neurons Hardcover Notebook - Lined/Grid €28,00

Rocketry Hardcover Notebook - Dot Grid

100% recycled paper, 81 gsm, dot grid pages, Cognitive Surplus

HC_InsideCover_dot_b643133f-28c7-400e-b9a9-8de525a411d7.jpg

Rocketry Hardcover Notebook - Dot Grid €28,00

Ocean Planet Hardcover Notebook - Dot Grid

HC_InsideCover_dot_81eaa161-8562-4c4e-ade1-3489363cd73f.jpg

Ocean Planet Hardcover Notebook - Dot Grid €28,00

Dentistry Hardcover Notebook - Dot Grid

Brain Anatomy Hardcover - Dot Grid - Cognitive Surplus

Brain Anatomy Hardcover - Dot Grid - Cognitive Surplus

Dentistry Hardcover Notebook - Dot Grid €28,00

Star Map Hardcover Notebook - Dot Grid

HC_InsideCover_dot_021744ea-9521-4ded-86b6-0f794d958fd2.jpg

Star Map Hardcover Notebook - Dot Grid €28,00

Planetary Motion Hardcover Notebook - Lined/Grid

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Planetary Motion Hardcover Notebook - Lined/Grid €28,00

Earth's Geology Hardcover Notebook - Lined/Grid

Grid - Cognitive Surplus

Grid - Cognitive Surplus

Earth's Geology Hardcover Notebook - Lined/Grid €28,00

Gems & Minerals Hardcover Notebook - Dot Grid

100% recycled paper, 81 gsm, dot grid pages, Cognitive Surplus

HC_InsideCover_dot_7786bf12-38f7-47c3-99eb-2cdcef3c94b9.jpg

Gems & Minerals Hardcover Notebook - Dot Grid €28,00

Skeleton Pl 2 Hardcover Notebook - Dot Grid

Brain Anatomy Hardcover - Dot Grid - Cognitive Surplus

Brain Anatomy Hardcover - Dot Grid - Cognitive Surplus

Skeleton Pl 2 Hardcover Notebook - Dot Grid €28,00

Whales & Seals Hardcover Notebook - Dot Grid

100% recycled paper, 81 gsm, dot grid pages, Cognitive Surplus

HC_InsideCover_dot_a1ce6f3e-f918-4d95-8c7c-0a3d21a32ed6.jpg

Whales & Seals Hardcover Notebook - Dot Grid €28,00

Haeckel Jellyfish Hardcover Notebook - Lined/Grid

HC_InsideCover_linedGrid_21ab3294-bd0d-46c9-8309-5721b3230725.jpg

Haeckel Jellyfish Hardcover Notebook - Lined/Grid €28,00

Woodland Forest Hardcover Notebook - Dot Grid

100% recycled paper, 81 gsm, dot grid pages, Cognitive Surplus

HC_InsideCover_dot_88d0f346-9236-4c3f-9544-5e4aba3b1e36.jpg

Woodland Forest Hardcover Notebook - Dot Grid €28,00

Fruits & Vegetables Hardcover Notebook - Lined/Grid

HC_InsideCover_linedGrid_9cc8b2cd-29b1-4437-b3f3-dbf6f5520216.jpg

Fruits & Vegetables Hardcover Notebook - Lined/Grid €28,00

Astronomy Star Chart Hardcover Notebook - Lined/Grid

Grid - Cognitive Surplus

Grid - Cognitive Surplus

Astronomy Star Chart Hardcover Notebook - Lined/Grid €28,00

Forest at Dusk Hardcover Notebook - Dot Grid

100% recycled paper, 81 gsm, dot grid pages, Cognitive Surplus

HC_InsideCover_dot_2b43ef23-cafe-4ca5-b6ed-adb3a7d57bc8.jpg

Forest at Dusk Hardcover Notebook - Dot Grid €28,00

Rivers & Mountains Hardcover Notebook - Lined/Grid

Grid - Cognitive Surplus

Grid - Cognitive Surplus

Rivers & Mountains Hardcover Notebook - Lined/Grid €28,00

Ocean Terrain Map Hardcover Notebook - Dot Grid

Constellations Hardcover - Dot Grid - Cognitive Surplus

Constellations Hardcover - Dot Grid - Cognitive Surplus

Ocean Terrain Map Hardcover Notebook - Dot Grid €28,00

Wetlands Hardcover Notebook - Dot Grid

Birds Hardcover - Dot Grid - Cognitive Surplus

Birds Hardcover - Dot Grid - Cognitive Surplus

Wetlands Hardcover Notebook - Dot Grid €28,00

Bees Hardcover Notebook - Dot Grid

Bees Hardcover - Dot Grid - Cognitive Surplus

Bees Hardcover - Dot Grid - Cognitive Surplus

Bees Hardcover Notebook - Dot Grid €28,00

Neural Circuit Hardcover Notebook - Lined/Grid

Grid - Cognitive Surplus

Grid - Cognitive Surplus

Neural Circuit Hardcover Notebook - Lined/Grid €28,00

Chromosomes Hardcover Notebook - Dot Grid

Brain Anatomy Hardcover - Dot Grid - Cognitive Surplus

Brain Anatomy Hardcover - Dot Grid - Cognitive Surplus

Chromosomes Hardcover Notebook - Dot Grid €28,00

Descending Regions Hardcover Notebook - Lined/Grid

Grid - Cognitive Surplus

Grid - Cognitive Surplus

Descending Regions Hardcover Notebook - Lined/Grid €28,00

Mushrooms Pl 2 Hardcover Notebook - Lined/Grid

HC_InsideCover_linedGrid_8d6ec49a-7f98-4d9a-9a12-7e6751d61cb9.jpg

Mushrooms Pl 2 Hardcover Notebook - Lined/Grid €28,00

Deep Sea Hardcover Notebook - Lined/Grid

HC_InsideCover_linedGrid_685740ef-d599-45d4-88a9-917181457da0.jpg

Deep Sea Hardcover Notebook - Lined/Grid €28,00

Retro Rockets Hardcover Notebook - Dot Grid

HC_InsideCover_dot_6d3d0dd1-2b88-40da-898d-fa34a1573670.jpg

100% recycled paper, 81 gsm, dot grid pages, Cognitive Surplus

Retro Rockets Hardcover Notebook - Dot Grid €28,00

Forest at Dusk Hardcover Notebook - Lined/Grid

HC_InsideCover_linedGrid_c5e93396-5791-4620-9252-0b9a4ef0ece7.jpg

Forest at Dusk Hardcover Notebook - Lined/Grid €28,00

Day and Night on Earth Hardcover Notebook - Dot Grid

Constellations Hardcover - Dot Grid - Cognitive Surplus

Constellations Hardcover - Dot Grid - Cognitive Surplus

Day and Night on Earth Hardcover Notebook - Dot Grid €28,00

Butterflies Hardcover Notebook - Lined/Grid

Grid - Cognitive Surplus

Grid - Cognitive Surplus

Butterflies Hardcover Notebook - Lined/Grid €28,00

Succulents Hardcover Notebook - Dot Grid

Botany Hardcover - Dot Grid - Cognitive Surplus

Botany Hardcover - Dot Grid - Cognitive Surplus

Succulents Hardcover Notebook - Dot Grid €28,00

Medicinal Botany Hardcover Notebook - Lined/Grid

Grid - Cognitive Surplus

Grid - Cognitive Surplus

Medicinal Botany Hardcover Notebook - Lined/Grid €28,00

Skeleton & Bones Hardcover Notebook - Lined/Grid

HC_InsideCover_linedGrid_01e12280-789f-4c24-b89f-fa19897c2d05.jpg

Skeleton & Bones Hardcover Notebook - Lined/Grid €28,00

Retro Science Lab Hardcover Notebook - Lined/Grid

Grid - Cognitive Surplus

Grid - Cognitive Surplus

Retro Science Lab Hardcover Notebook - Lined/Grid €28,00

Chicken Hardcover Notebook - Dot Grid

Birds Hardcover - Dot Grid - Cognitive Surplus

Birds Hardcover - Dot Grid - Cognitive Surplus

Chicken Hardcover Notebook - Dot Grid €28,00

Diatoms Hardcover Notebook - Dot Grid

100% recycled paper, 81 gsm, dot grid pages, Cognitive Surplus

HC_InsideCover_dot_52d6e6c2-9f13-4bd0-ae25-65d1887bded7.jpg

Diatoms Hardcover Notebook - Dot Grid €28,00

Infectious Disease Hardcover Notebook - Dot Grid

HC_InsideCover_dot_0311f072-ffbd-4483-a71f-ab79b3cd9e15.jpg

Infectious Disease Hardcover Notebook - Dot Grid €28,00

Insect Hardcover Notebook - Lined/Grid

Grid - Cognitive Surplus

Grid - Cognitive Surplus

Insect Hardcover Notebook - Lined/Grid €28,00

Cellular Automaton Hardcover Notebook - Lined/Grid

HC_InsideCover_linedGrid_d834d90c-0f06-4681-8a1d-0be12389aaa8.jpg

Cellular Automaton Hardcover Notebook - Lined/Grid €28,00

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Brain & Neuroscience 500 mL Steel Bottle

Michiel R.

So nice that I’m afraid of actually using it

I think that the bottle looks just amazing. It has a great weight for its size. I haven’t been able to test the bottle yet, as I’ve just been admiring the looks and texture of it, even slightly afraid of using it and then damaging it in some way.

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