Deborah Andrews Books

Mathematical Puzzle Book
Mathematical Puzzle Book

By Deborah Andrews

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Brain Training Exercises
Brain Training Exercises

By Deborah Andrews

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Very Hard Sudoku
Very Hard Sudoku

By Deborah Andrews

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Brain Training Games
Brain Training Games

By Deborah Andrews

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Mind Teaser Puzzles
Mind Teaser Puzzles

By Deborah Andrews

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Mind Teasers Puzzles
Mind Teasers Puzzles

By Deborah Andrews

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Number Puzzle Games
Number Puzzle Games

By Deborah Andrews

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Math Sudoku
Math Sudoku

By Deborah Andrews

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Mega Sudoku
Mega Sudoku

By Deborah Andrews

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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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