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Cognitive Surplus

4.5 (123)

Hypothesis Mystery Notebook 6-pack

Name: Cognitive Surplus Hypothesis Mystery Notebook 6-pack - Hypothesis Mystery Notebook 6-pack
Brand: Cognitive Surplus
SKU: 40003602579533
Price: 95.0 USD
Availability: InStock
Rating: 4.7 (2 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$95.00$150.00

37% off

Quantity

Color

Black

Quantity

Surprise yourself with a little notebook mystery and snag a discount in the process! You get to pick the kind of paper (lined/grid, dot grid, or some of each kind) and we'll do the rest.

Each mystery pack contains 6 unique notebooks with th...

Reviews

4.7

10 ratings

Great deal!

I love these notebooks they are excellent for math and since all their covers are beautiful it was worth the discount to grab the mystery pack!

Rocío · August 20, 2025

These are very nice journals. I'm happy I got the mystery pack because I never would have picked these covers. They're all beautiful. 4/5 only because my fountain pens bleed on the paper a bit.

Evan · July 3, 2025

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Cognitive Surplus

4.8 (9.1K)

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Reviews

4.7

10 ratings

Great deal!

I love these notebooks they are excellent for math and since all their covers are beautiful it was worth the discount to grab the mystery pack!

Rocío · August 20, 2025

These are very nice journals. I'm happy I got the mystery pack because I never would have picked these covers. They're all beautiful. 4/5 only because my fountain pens bleed on the paper a bit.

Evan · July 3, 2025