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BiblioScan Blog

Tips and tricks for book reselling

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02
·11 min read

Amazon Used Book Buy Box in 2026: FBM vs FBA After the Prime Bump

The Buy Box is dead, long live the Buy Box. Since November 2025, FBA no longer wins used books on Amazon.com by default. What changed, why your scanner still shows the old Buy Box, and the pricing and FBM vs FBA rules sellers use now.

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03
·12 min read

Where to Find Used Books to Resell: 55 Sourcing Channels That Actually Work (2026)

If you only know your local thrift store and Facebook Marketplace, you are leaving most of the market on the table. 55 sourcing channels by category, the rhythm to give each one, and the new city-by-city directory that puts the addresses near you on a map.

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04
·9 min read

What Is an ISBN? How to Read, Check, Convert and Look One Up (2026)

Thirteen digits that pin down the country, publisher and exact edition of a book. How to read an ISBN, check it, convert it, look a book up with it, and why it is the key to what the book is worth.

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05
·14 min read

The US Used Book Market: What 975 Million Amazon Sales Reveal (2016-2025)

Ten years of Amazon.com data: used book sales doubled to a 2024 peak, the penny book is nearly extinct, median prices are up 52% — and almost 11 million sales a year close above $20. The largest public data study of the US used book market.

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06
·11 min read

How much is my book worth? How to find the real value of any book

Book value by ISBN, appraising old books without a barcode, the 4 factors that set the price, and what books are actually worth, shelf by shelf — the full method to find any book's value without falling for inflated asking prices.

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07
·11 min read

Why do some used books gain value?

Scarcity, the long tail, an author's death, the Netflix effect, BookTok, censorship: the real mechanics that send used-book prices climbing — backed by data, with the method to spot the gems.

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08
·8 min read

Reselling used books is basically running an index fund (except the margins are obscene)

Is book flipping an index fund? Diversification, the snowball effect, winners erasing losers. The portfolio lens that changes everything — with a real €80-margin case.

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09
·12 min read

New or used books in the US, how the market actually decides

No fixed-price law, just 75 years of trade conventions and one weird Supreme Court tax case. How the line between new and used really gets drawn in the American book market.

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10
·15 min read

US Used Book Market: Who Really Sells What, and Amazon's Actual Share

Amazon doesn't control 90% of US used books. Data-driven breakdown of a $5.29B market: ThriftBooks, eBay, AbeBooks, textbook flipping and the MFN antitrust story.

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11
·8 min read

Where to Sell Old & Used Books: 21 Sites Compared (2026)

The same book checked on 21 buyback sites, then sold for 6x more. Real payouts, real screenshots.

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12
·9 min read

How to Scan Books for Resale: Complete 2026 Guide

The complete method to scan fast, read the right signals, and stop letting an $80 book walk out for a $4 buyback offer. With a real-world case.

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