SKU: 56064924059

The Innovation Stack: Building an Unbeatable Business One Crazy Idea at a Time

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The Innovation Stack: Building an Unbeatable Business One Crazy Idea at a TimeFrom the cofounder of Square, an inspiring and entertaining account of what it means to be a true entrepreneur and what it takes to build a resilient, world changing company In 2009, a St. Louis glassblowing artist and recovering computer scientist named Jim McKelvey lost a sale because he couldn't accept American Express cards. Frustrated by the high costs and difficulty of accepting credit card payments, McKelvey joined his friend Jack Dorsey (the

From the cofounder of Square, an inspiring and entertaining account of what it means to be a true entrepreneur and what it takes to build a resilient, world-changing company

In 2009, a St. Louis glassblowing artist and recovering computer scientist named Jim McKelvey lost a sale because he couldn't accept American Express cards. Frustrated by the high costs and difficulty of accepting credit card payments, McKelvey joined his friend Jack Dorsey (the cofounder of Twitter) to launch Square, a startup that would enable small merchants to accept credit card payments on their mobile phones. With no expertise or experience in the world of payments, they approached the problem of credit cards with a new perspective, questioning the industry's assumptions, experimenting and innovating their way through early challenges, and achieving widespread adoption from merchants small and large.

But just as Square was taking off, Amazon launched a similar product, marketed it aggressively, and undercut Square on price. For most ordinary startups, this would have spelled the end. Instead, less than a year later, Amazon was in retreat and soon discontinued its service. How did Square beat the most dangerous company on the planet? Was it just luck? These questions motivated McKelvey to study what Square had done differently from all the other companies Amazon had killed. He eventually found the key: a strategy he calls the Innovation Stack.

McKelvey's fascinating and humorous stories of Square's early days are blended with historical examples of other world-changing companies built on the Innovation Stack to reveal a pattern of ground-breaking, competition-proof entrepreneurship that is rare but repeatable.

The Innovation Stack is a thrilling business narrative that's much bigger than the story of Square. It is an irreverent first-person look inside the world of entrepreneurship, and a call to action for all of us to find the entrepreneur within ourselves and identify and fix unsolved problems--one crazy idea at a time.

Binding Type: Hardcover
Publisher: Portfolio
Published: 03/10/2020
ISBN: 9780593086735
Pages: 288
Weight: 0.85lbs
Size: 8.50h x 5.90w x 1.10d
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SKU: 56064924059

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Mack Mackenzie
Alexandria, US
★★★★★ 4
These are very thick pillows.
Item Package Quantity: 2, Size: Queen
Exactly as advertised. They are very firm and very thick. They're too thick for me to be able to use as bed pillows. However, they seem to work pretty well as cushions in my papasan chair on top of its normal cushion also work very well as decorative pillows. I'm still giving them four stars because they're exactly as advertised and they seem well made. My only complaint is that they're just too thick. And that's definitely not the fault of the pillows or the pillow maker.
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Reviewed in the United States on May 12, 2026
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JLN
Natrona Heights, US
★★★★★ 5
Lightweight, very smooth and comfortable comforter sheet set an a very attractive price
Color: Ivory, Size: Queen, Color: Ivory, Size: Queen
Such a well priced, attractive bed in a bag (comforter and sheet set) with the most lightweight comforter I have ever come across that is not a down comforter. This one is filled with 100% polyester with a 100% microfiber exterior. The sheets are called microfiber, which I am sometimes not a fan of as sometimes they feel too stretchy and hot. However, these feel good, and almost more like a smooth percale. It’s nice to the touch. Color is attractive in a clean ivory color. Going back to the comforter, I love the lightness of natural down, but somehow I have developed a sensitivity to the feathers which make me sneeze. This one can easily be thrown into the washer and dryer and feels equivalently light as my down comforters. It weighs in at slightly over a pound (though I could only carry it onto the scale) and I absolutely love the lightness of it. I did wash it in the washer and dried it in a dryer on normal heat. Came out with no wrinkles and very fluffy. Five stars!
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Reviewed in the United States on May 30, 2026
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Lenta Bear
Fort Morgan, US
★★★★★ 4
Nice Comforter, Thin Sheets
Color: Blue, Size: Queen, Color: Blue, Size: Queen
I bought this comforter set for my guest bedroom, and the price was great. It’s really pretty and fits the bed perfectly. It includes a comforter, a sheet set with pillowcases, and two pillow shams. It arrived vacuum-sealed, when I opened it, I was impressed by how soft it felt—just right for a comforter. It seems like it will be warm yet cooling at the same time, and I love its thickness. The only downside was the sheet set. While the comforter is fluffy and cozy, the sheets felt cheap—very thin—and I prefer them thicker. They’re labeled 100% polyester but are just too thin for my taste. If you’re not picky about sheets, this set would be perfect. They are soft, just not thick enough. Overall, I really like the comforter, but I’ll use my own sheets because of the thinness of the included ones. I would have given it five, but the sheets bring it down to four.
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Reviewed in the United States on June 6, 2026
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shantel
Charlottesville, US
★★★★★ 5
Beautiful Sage Green Set That is Super Soft and Cozy!
Color: Sage Green, Size: Queen
​I am absolutely in love with this sage green bedding set. The queen comforter has a gorgeous pre washed crinkled texture that gives the whole bedroom a really cozy, aesthetic look without needing to be ironed. It is incredibly fluffy and has just the right amount of weight to it, making it perfect to use all year round. The brushed sheets that come with the bed in a bag are surprisingly soft against the skin, and everything fit my queen mattress perfectly right out of the box. ​The color is a beautiful, calming sage green that matches my room decor perfectly. I have already washed the sheets and comforter once, and they held up great in the machine without losing their softness or shrinking.
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Reviewed in the United States on June 4, 2026
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apaulcolypse
Houston, US
★★★★★ 4
Soft All-in-One Queen Bedding Set With Lightweight Comforter
Color: Beige, Size: Queen
This 7-piece queen bedding set is a solid all-in-one option for anyone looking to refresh a bedroom with a clean, aesthetic look without spending much. The comforter has a lightweight feel with a soft crinkled texture that gives it a relaxed, lived-in appearance while still looking modern and put together on the bed. The included sheets and pillowcases are soft and smooth against the skin, with enough comfort for year-round use. The comforter itself is light but still provides enough warmth for most seasons, making it practical for both warmer and cooler months. Fit is generally accurate for standard queen mattresses, and the set comes complete with everything needed, which makes setup simple and convenient. The overall look is cohesive, with a soft beige tone that blends easily into most room styles. While it is not a luxury heavyweight bedding set, it offers good comfort, style, and value for the price, making it a strong choice for guest rooms, first apartments, or an easy bedroom upgrade.
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Reviewed in the United States on June 5, 2026

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