Zilpha Keatley Snyder Books

The Velvet Room

By Zilpha Keatley Snyder

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Black and Blue Magic

By Zilpha Keatley Snyder

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Eyes in the Fishbowl

By Zilpha Keatley Snyder

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Locked in one evening with the vast wealth of the Alcott-Simpson department store, a fourteen-year-old boy meets an unusual girl who hints about the mysterious "they" and tells him of strange going...

And condors danced

By Zilpha Keatley Snyder

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The year Carly turns eleven, 1907, is filled with playing detective, watching condors, observing a fierce feud involving her family's Southern California ranch, and coping with unexpected tragedies.

A Fabulous Creature

By Zilpha Keatley Snyder

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Libby on Wednesday

By Zilpha Keatley Snyder

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Having been put ahead in an accelerated eighth grade program by her bizarre and creative family, precocious eleven-year-old Libby hates her "socialization" process, until she makes some highly orig...

Squeak Saves the Day

By Zilpha Keatley Snyder

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Song of the Gargoyle

By Zilpha Keatley Snyder

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Blair s nightmare

By Zilpha Keatley Snyder

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The Stanley kids and their stepsister try to keep secret a dog that Blair finds, keep David out of the clutches of the school bully, and find out if some escaped convicts really are nearby. Sequel...

The Diamond War Castle Court Kids

By Zilpha Keatley Snyder

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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.