The Great Mental Models: Systems and Mathematics
SKU: 15126087652

The Great Mental Models: Systems and Mathematics

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The Great Mental Models: Systems and MathematicsBy: Shane Parrish, Rhiannon Beaubien, Rosie Leizrowice Time and time again, great thinkers like Warren Buffett and Charlie Munger have credited their success to mental models: simple representations of how the world works that can be applied in a wide array of contexts. Mastering a small number of these concepts enables you to rapidly grasp new information, identify patterns others dont, and better anticipate outcomes. The Great Mental Models

By: Shane Parrish, Rhiannon Beaubien, Rosie Leizrowice     

Time and time again, great thinkers like Warren Buffett and Charlie Munger have credited their success to mental models: simple representations of how the world works that can be applied in a wide array of contexts. Mastering a small number of these concepts enables you to rapidly grasp new information, identify patterns others don’t, and better anticipate outcomes.

The Great Mental Models introduces the most powerful models that anyone can use right away to improve decision making and productivity. In this volume, Shane Parrish introduces simple frameworks borrowed from mathematical and systems thinking, including:

  • Regression to the mean: Over or underperformance over time tends to balance out to the average.
  • Margin of safety: To create a robust system, design for the most extreme possible scenario to avoid catastrophe if it does arise.
  • The law of diminishing returns: The return on any investment, whether money, time or attention, tends to reduce with each additional unit.

Building a latticework of mental models is one of the most powerful things you can do to become a better thinker, leader, or creator. The Great Mental Models is the accessible guide you need to unlock this ability.

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SKU: 15126087652

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PFSTR
Louisville, US
★★★★★ 5
Excellent Knives... Highly Recommended
Color: Black, Color: Black
Great, sturdy knives. They cut amazingly. They have a nice ringing sound when you take them out of block. Block is a nice solid wood. The only negative is that the handles get a residue on them if you wash them in the dishwasher. It does go away, but I strongly recommend handwashing these. I definitely recommend this knife set. Great value for the price.
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Reviewed in the United States on February 22, 2026
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KV
San Leandro, US
★★★★★ 5
Quality wooden block and nice set of knives for every day use.
Color: White
Bought these for my daughter and son-in-law for their fifth wedding anniversary. Wanted to get something that looked nice and wouldn’t take a lot of room but had a nice variety. The wooden block looks so nice, not too dark-not too light. The variety of knives are perfect for every day use & handles have a nice grip. My daughter and son-in-law use them everyday and love them!
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Reviewed in the United States on March 15, 2026
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Anne Wright Official
Lake Worth, US
★★★★★ 4
worth every penny
Color: Black, Color: Black
I was honestly surprised by how good this knife set is for the price. I previously owned a $300 knife set, and I can confidently say the Fikshot knives are just as sharp — maybe even sharper right out of the box. The blades slice through meat, vegetables, and bread effortlessly, and they still hold their edge really well after regular use. The full tang handles also feel sturdy and comfortable in hand, which makes prep work much easier. I also love how sleek and modern the black knife block looks on my kitchen counter. It feels like a premium set without the premium price tag. The built-in sharpener is a nice bonus too. My only small complaint is the kitchen scissors placement in the block. The scissors tend to rub against the slot when pulling them out, and it scratches the knife block a bit over time. It’s not a dealbreaker for me, but I do wish that part was designed a little better. Overall, this is an excellent value knife set that performs far beyond its price point. Great for home cooks, new homeowners, or anyone wanting a high-end feel without spending hundreds of dollars.
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Reviewed in the United States on May 11, 2026
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Taylor
Los Angeles, US
★★★★★ 5
Finally a knife set that I love
Color: Black, Color: Black
I’ve been needing a new knife set that also came with steak knives and these are great! Very durable, has a nice weight to it, doesn’t feel cheap, great price and they came very sharp! Bonus points for coming with scissors and whatever that sharpening thingy is. Haven’t used that yet bc I don’t know how but we’ll cross that bridge when we get there.
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Reviewed in the United States on April 2, 2026
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Rubelys
Omaha, US
★★★★★ 5
Conives
Color: Black
Very good quality and super resistant covers.
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Reviewed in the United States on May 27, 2026

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