The Cardboard Investment:
A Brief History of Sports Cards

Got a box of old sports cards collecting dust in your closet? You’re not alone — and you might be sitting on a hidden goldmine.

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For over a century, collectors have bought, traded, and sometimes forgotten about sports cards. Some threw them away. Others sold them at yard sales for pennies. But what if you could turn your childhood hobby into a real business?

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The Cardboard Investment is part nostalgic memoir, part guide, and part history lesson. In this book, author Andrew Pietroski shares:

🔹 His personal journey of running a sports card shop in a mall for two years
🔹 A look at how the industry has evolved — from vintage wax packs to eBay and online auctions
🔹 The rise and fall of card values during the COVID-era market boom
🔹 The ongoing thrill of the hunt: why collectors still chase that one rare card

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Whether you're a lifelong collector, a sports fan, or someone curious about turning collectibles into cash, this book offers a unique look at the passion, business, and chaos behind the hobby.

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If you’ve ever asked yourself, “Are my old cards worth anything?” — this book is for you. Scroll up and grab your copy now.