Gertrude Chandler Warner Books

The Alden children suspect that the other guests are somehow involved when things begin to disappear at the bed and breakfast where they are staying in Washington, D.C.

The Canoe Trip Mystery

By Gertrude Chandler Warner

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The Mystery of the Missing Cat

By Gertrude Chandler Warner

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The mysterious disappearance of a reclusive neighbor's cat involves the Boxcar children in some complicated detective work.

The Mystery on Stage Boxcar Children Series The 43

By Gertrude Chandler Warner

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The Mystery at Snowflake Inn

By Gertrude Chandler Warner

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While staying at an eighteenth-century inn in Vermont, the Boxcar children become curious about the mysterious "accidents" that keep plaguing the owners.

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

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.