Jim Sukach Books

Dr. Quicksolve Mysteries
Dr. Quicksolve Mysteries

By Jim Sukach

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Jeff Quicksolve Adventures
Jeff Quicksolve Adventures

By Jim Sukach

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Quicksolve Whodunit Puzzles
Quicksolve Whodunit Puzzles

By Jim Sukach

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Great Quicksolve Whodunit Puzzles
Little Giant Book of Mini Mysteries Little Giant Books
Giant Book of Puzzles
Great Quicksolve Whodunit Puzzles
Giant Book of Pencil Puzzles Giant Book Series
Quicksolve whodunit puzzles
Quicksolve whodunit puzzles

By Jim Sukach

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The reader is invited to join celebrated armchair detective Dr. Jeffrey Lynn Quicksolve in solving a series of mysteries. The solutions are given in a separate section.

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Great Whodunit Collection

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If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.

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